With no official program or synopsis available via the official Olympics.com website here is a complete rundown of the opening ceremony sourced from Wikipedia (edited)

Artistic director: Thomas Jolly

Music director: Victor Le Masne 

Director of Dance: Maud Le Pladec 

Choreographer: Maud Le Pladec

Styling and Costume director: Daphné Bürki

Head Costume Master: Olivier Bériot

Scriptwriters:

• Patrick Boucheron
• Damien Gabriac
• Fanny Herrero
• Leïla Slimani

Prologue

After everyone was seated and the Olympic torch relay ended its metropolitan leg around the area surrounding the Stade de France, the event began with a pre-recorded video (with footage of past opening ceremonies of the Games) of comedian Jamel Debbouze carrying the flame into an empty Stade de France, having not realised that the ceremony would be held outside the stadium. Interspersed were clips of newscasters reporting that the ceremony would be along the Seine after he arrives inside the stadium. He is approached by footballer Zinedine Zidane, who takes the torch through the city streets, attracting the attention of a trio of children, representing the three times Paris has hosted the Games, then he heads into the Paris Métro.

Before the train can leave the station, it breaks down, prompting Zidane to pass the torch to the children through the train window. After traversing the Catacombs of Paris and the underground lake beneath the Palais Garnier, the children are approached by a hooded and masked torchbearer who is rowing a boat. The trio climb aboard and as they begin their journey to the outside world, the camera pans up to the Trocadéro stage to reveal Thomas Bach, president of the International Olympic Committee and Emmanuel Macron, president of the French Republic, already seated as they stand up to welcome the crowd. After that, the boat rows through a tunnel, revealing a light that shines to reveal the phrase “Ça ira” as the boat arrived, traversing the Seine.

The masked torchbearer (nicknamed “Zorro” by France Télévisions) was the protagonist of the opening ceremony, serving as a connecting thread throughout the ceremony. The character made appearances between segments in pre-recorded scenes, live on the Seine, the rooftops of Paris and the city’s landmarks. The torchbearer represented several masked French heroes, such as Arsène Lupin and the Phantom of the Opera, as well as the Olympic spirit, and Sequana, the goddess of the Seine. The figure was also compared to the French video game company Ubisoft‘s Assassin’s Creed franchise characters’ hoods and parkour action, especially to Arno Dorian, who appears in the 2014 instalment Assassin’s Creed Unity set during the French Revolution.

Shortly after the ceremony ended, professional tag player Clément Dumais wrote on Twitter that a total of 12 people had portrayed the character during the four-hour ceremony, including parkour artist Simon Nogueira, while ruling out his own participation.

At 19:30, pyrotechnics over the Pont d’Austerlitz (decorated in Olympic theming) bridge in the tricolour of the flag of France, and jets of water from the Seine began the Parade of Nations, beginning with the Greek delegation and the Refugee Olympic Team  For the first time in Olympic history, the athletes were paraded by boats, such as tourist boats, ferries and yachts, and the parade was integrated into the artistic programme for the first time.

Enchanté

The first sequence, Enchanté, included the ceremony’s first musical act which featured Lady Gaga and eight dancers, all in custom Dior costumes. The segment (pre-recorded for “safety reasons”) alluded to “a cabaret feel” with a performance of “Mon truc en plumes”, made famous by vedette Zizi Jeanmaire, on a golden staircase beside a black grand piano on the left bank of the Seine.

Dancers and acrobats from the Moulin Rouge performed on French garden-style barges on the bank of the Seine.

Synchronicité

The second sequence, Synchronicité, started with a dance tribute by 420 people to the reconstruction teams of Notre-Dame repairing the cathedral following its 2019 fire and artisans in general, held on Île de la Cité. This sequence featured French-Senegalese dancer Guillaume Diop and Olympic champions Martin Fourcade and Michael Phelps. Aside from the Notre-Dame’s reconstruction, the sequence also highlighted the making of the Olympic medals in their three metals at the Monnaie de Paris and the Louis Vuitton cases that carry them.

Liberté

The third sequence, Liberté, is themed after the French Revolution, the Reign of Terror and their aftermath. In a pre-recorded scene, the torchbearer witnesses a performance of “A la volonté du peuple” (the original French version of “Do You Hear the People Sing?”) by a group of actors playing in the musical Les Misérables, which then jumps to live footage of the façade of the Conciergerie. Soprano Marina Viotti, dressed as a beheaded Marie Antoinette, sings the opening notes of Ah! Ça Ira!, and is joined by heavy metal band Gojira. They then renditioned the Habanera from the French opera Carmen.

Dancers at the Bibliothèque nationale de France performed to classic and contemporary French literary pieces. The tableau also addressed diverse forms of love (including LGBT themes and polyamory), expressed by acrobats from the XY company and circus artists from the Gratte-Ciel company. Tightrope walker Nathan Paulin performed outdoors.

French literature titles featured in the Liberté segment included Romances Sans Parole (Romances Without Words) by Paul-Marie Verlaine, 1874; Bel-Ami (Nice Friend) by Guy de Maupassant, 1885; On Ne Badine Pas Avec L’amour (No Trifling with Love) by Alfred de Musset, 1834; Passion Simple (Simple Passion) by Annie Ernaux, 1992; Sexe Et Mensonges (Sex and Lies) by Leila Slimani, 2021; Le Diable Au Corps (The Devil in the Body) by Raymond Radiguet, 1923; Les Liaisons Dangereuses (Dangerous Relationships) by Pierre Choderlos de Laclos, 1782; Les Amants Magnifiques (The Magnificent Lovers) by Molière, 1670; and Le Triomphe De L’amour (The Triumph of Love) by Pierre de Marivaux, 1732.

Égalité

The Republican Guard marching band played “For me formidable” by Charles Aznavour on the Pont des Arts footbridge, opening the fourth sequence, Égalité. French-Malian singer Aya Nakamura performed “Pookie”, an arrangement of “For me formidable” and her hit “Djadja”, in front of the Institut de France accompanied by the Choir of the French Army and musicians of the Republican Guard.

Fraternité

The fifth sequence, Fraternité, began with Camille Saint-Saëns’ “Danse macabre” and referenced the 1911 theft of the Mona Lisa from the Louvre. The parade resumed with the Cypriot through Gabonese delegations, as pianist Alexandre Kantorow performed Maurice Ravel’s “Jeux d’eau” under heavy rain.

The ceremony moved to the Musée d’Orsay and paid homage to French filmmakers the Lumière brothers and Georges Méliès, alongside French children’s literature, such as The Little Prince, as well as French contributions to aviation, while the Paul Dukas tone poem “The Sorcerer’s Apprentice” played. After that, the International Space Station appears, revealing a yellow periscope which pans down to an animated underwater submarine sequence featuring the Minions from Illumination’s Despicable Me holding various sports events in a submarine with the Mona Lisa emerging from the Seine after it explodes.

Mezzo-soprano Axelle Saint-Cirel, representing the national personification of the French Marianne, sang the French national anthem in a French flag-themed Dior dress atop the Grand Palais.

Sororité

The sixth sequence, Sororité (sisterhood), highlighted ten notable French women with golden statues along the Seine: Olympe de Gouges, Alice Milliat, Gisèle Halimi, Paulette Nardal, Jeanne Barret, Christine de Pizan, Louise Michel, Alice Guy, Simone Veil, and Simone de Beauvoir (the latter’s statue did not rise during the ceremony). After that, Saint-Cirel sang the sixth verse of the French national anthem, accompanied by a choir.

Sportivité

Athletes demonstrated urban sports, namely skateboarding and BMX freestyle, on floating ramps. Polish countertenor Jakub Józef Orliński sang Viens Hymen from Jean-Philippe Rameau’s opera Les Indes galantes, becoming the first artist from Poland to perform at an Olympic Games opening ceremony. Orlinski then performed some breakdancing in a nod to the sport’s inclusion at the Games. Rapper Rim’K followed, singing his song “King”.

Festivité

The eighth sequence, Festivité, started with a tribute to French fashion at the red carpet on the Passerelle Debilly. The parade continued on to its end with the Australian and the American delegations, as both Brisbane, Australia and Los Angeles, U.S.A are the next Olympic Games hosts in 2032 and 2028 respectively.

The masked torchbearer walked past the models and performed acrobatics on the Passerelle, after which a live video feed showed the participants of the Olympic surfing tournaments on Tahiti. The parade of boats culminated with the French delegation arriving on a large boat.

A tribute to the European Union was introduced by “The Final Countdown” by Swedish band Europe and a drone show around the Eiffel Tower forming the 12 stars of the EU flag, and featured drag queens including Nicky Doll and dancers including Germain Louvet, Electro Street, and the Mazelfreten collective, continuing on the waterlogged red carpet of the Debilly footbridge, as well as a barge with an LED dancefloor, to Eurodance tracks such as “Freed from Desire”, ”Be My Lover”, “Stereo Love”, “It’s Rainy Day” and “Sandstorm”. Philippe Katerine, nearly nude and painted as a blue Dionysus (the Greek god of wine, in tribute to France’s wine industry and the ancient Greek Olympics),  performed “Nu”, lying at the center of a long table with the drag queens posed in a manner resembling a bacchanalian feast.

The soundtrack of the first eight sequences included rearranged classics of French chanson and pop culture mixed by DJ Barbara Butch.

Obscurité

The ninth sequence, Obscurité, continued on from Festivité, with the music turning darker in mood and the dancers aboard the barge becoming more frenetic. As its LED floor flashed a montage of various climate disasters, including droughts, floods, and forest fires, the dancers slowly collapsed, one by one. As the Seine darkened, Juliette Armanet appeared on a raft singing “Imagine” as part of a call for peace, accompanied by Sofiane Pamart on a burning piano.

Solidarité

The tenth sequence, Solidarité, showcased a masked rider representing French heroine Joan of Arc (portrayed by Floriane Issert, a member of the Gendarmerie) wearing an Olympic flag as a cape along with silver and black armour, riding a metallic mechanical horse on the Seine to spread the spirit of the Games. This segment referenced Pierre de Coubertin and the history of the Olympics, with numerous archival images and highlights of past Games.

Volunteers carrying the flags of the participating countries gathered under the Eiffel Tower. The rider appeared on a white horse, bringing another, folded Olympic flag to a mast at the Trocadéro, surrounded by athletes. The Olympic Anthem was performed by the Radio France Choir featuring the Maîtrise de Radio France and the Orchestre National de France as members of the French Armed Forces raised the flag, which was accidentally raised upside down.

Solennité

During the eleventh sequence, Solennité, the Olympic Laurels were awarded, with Italian diplomat Filippo Grandi receiving them in his capacity as the United Nations High Commissioner for Refugees. Tony Estanguet, head of the organising committee, and IOC President Thomas Bach welcomed participants and spectators in French and English. President Emmanuel Macron then declared the Games open, stating:

“I proclaim open the Games of Paris, celebrating the XXXIII Olympiad of the modern times.”

The Olympic oath was sworn by French flag bearers Mélina Robert-Michon and Florent Manaudou, coach Christophe Massina, and a wrestling referee.

The masked torchbearer made their final appearance at the opening ceremony. They gave the Olympic flame to Zinedine Zidane, who handed it to Spanish tennis player Rafael Nadal (beginning the final leg). He carried the flame up the Seine by boat along with other Olympic champions Carl Lewis, Serena Williams, and Nadia Comăneci, while on the Trocadéro stage, Shaheem Sanchez, a deaf dancer performed “Supernature” by Cerrone in French Sign Language, backdropped by an elaborate light show on the Eiffel Tower, focusing on the Olympic Rings. The boat docked near the Louvre, where tennis champion Amélie Mauresmo continued the relay with basketball player Tony Parker. They were joined by Paralympic champions Nantenin Keïta, Alexis Hanquinquant, and Marie-Amélie Le Fur, officially opening the twelfth and final sequence, Éternité.

Éternité

The flame was relayed through the Tuileries Garden, where the cauldron would be situated, after entering the Carrousel du Louvre. A number of French Olympic champions carried the torch: Jean-François Lamour, Félicia Ballanger, Florian Rousseau, Émilie Le Pennec, David Douillet, Clarisse Agbegnenou, Alain Bernard, Laure Manaudou, Renaud Lavillenie, Laura Flessel and Charles Coste, the oldest living French Olympic champion at 100 years old.

The final leg culminated with Teddy Riner and Marie-José Pérec lighting the Olympic cauldron, a ring of 40 computerised LEDs and 200 high-pressure water aerosol spray dispensers which was topped by a 30-metre-tall helium sphere resembling a hot air balloon, rising in the air, reminiscent of the Montgolfier brothers’ experiments leading to the first hot air balloon flight in 1783. The cauldron is attached to a wire-like conduit anchored in the middle of the Grand Bassin Rond (literally, “Large Round Basin”) to avoid flying off, as well as feeding the cauldron with water and electricity, and is pulled back to the ground during daytime. It is the first Olympic cauldron to light up without the direct use of fossil fuels.

Céline Dion, accompanied by a pianist, concluded the ceremony by singing Édith Piaf’s “Hymne à l’amour” from the first floor of the Eiffel Tower, bringing the ceremony to a close at 23:29 CEST.

Read the full description with links and attributions via Wikipedia