The film follows the adventures of Baron Munchausen, who is prompted to travel to the moon by his cousin Sirius, an astrologer convinced that it is inhabited by an ancient race called the Selenites. The Selentites incidentally possess the secret of immortality. The Baron takes up his cousin's offer and travels to the moon using a tall masted ship pulled by three hot air balloons and he is aided by his super-ability friends (who are from the prequel to this film, The Fabulous Adventures of the Legendary Baron Munchausen). When they reach the moon, they are initially placed in jeopardy as their craft lands in a crater and they fall into a subterranean sea inhabited by monsters...
Dismissed from the railroads in 1863 for his union activities, Etienne Lantier found a job at the Voreux coal mine. But work was hard, wages were low and safety left much to be desired. Lantier tried to organize the miners into a union. When mine manager Hennebeau refused to negotiate, the workers launched a general strike, which ended with the intervention of the troops.
Police inspector, Landais is caught in a tough situation. Daniele has murdered her husband, yet after the inspector starts investigating the case, he is completely overcome by her. Her obvious attractions have him in thrall and eventually he realizes he will do anything not to lose her. His solution is to cover up for her crime, after which things begin to go poorly.
Bastien du Boccage is a repeat offender: hasn't he been sent to jail no fewer than six times? But he is no ordinary criminal mind you. As a matter of fact he is a newspaper editor and should have no problems with justice. The trouble is that he has a sister, Lucrèce, who is agony aunt in his newspaper and who tends not to mince her words. To make matters worse, Francine, his daughter, has fallen in love with Bruno, a penniless student and Lucrèce is prepared to do anything to prevent her marriage..
Because he loved a trainer named Suzy too much, honest Pierre Menard wasted his life and died. Innocent, but implicated in the ransacking of a jewelry store, he receives a five-year residence ban, which he ignores, only to find himself reduced to joining Paulo's sinister gang. The police finally arrest him and force him to become an informer if he doesn't want to leave Paris. He accepts and signs his death warrant.
In the Mouffetard district of Paris, Jérôme Crainquebille, an affable four-season merchant, is stopped by a police officer and taken to the station, unjustly accused of shouting "Mort aux vaches!" ("Death to the cows!"). When he returns to work after a fortnight's detention, he is ostracized by his neighbors. Lonely, Crainquebille sank into despair and alcoholism. His life in prison seemed sweeter, and his attempts to return were in vain. He owes his salvation to the affection of a local kid.
Jacqueline and Jacques, newlyweds, are in frequent discussions. The cause is Jacqueline's flirtatious nature, which she has not been able to shake off despite her marriage. One of her tennis partners, Pierre, declares his love for her, but Jacqueline advises him to marry Simone instead. Meanwhile, the husband is approached by an unsympathetic character who suggests that Jacqueline is his mistress.
Professor Louis Delage is a kidney transplant specialist. He is so good in his field that his peers nickname him the "great man". But one day, one of his patients die during surgery and Delage starts doubting. Is he actually such a great man? To fight desperation he decides to take in the deceased child while devoting more time to Florence, his hitherto neglected wife.
Back from a stay in the Far East, a woman who knew the names of the chiefs of a drug ring is murdered. Georges Masse, the famous reporter, decides to investigate, accompanied by his faithful photographer P'tit Louis. He will come across some unappetizing characters like M. Dubois, a killer, Luigi Costelli, a dangerous trafficker and a beautiful but dubious lady, Suzanne Wilson. After being himself suspected, Masse will make the truth triumph.
Marguerite secretly loves a novelist whose face no one knows. The jealous husband sets up a scheme by asking an actor friend to play the novelist and behave in an execrable way in order to disgust his wife. But things never turn out the way you think they will.
During the Second World War, Georges Masse undergoes a dangerous mission by taking secret documents from Tangiers to London.
A series of vignettes, in which Noel-Noel appears as the moderator, lecturer, commentator and leading actor, that examine the bores and pests of everyday life much like Pete Smith and Robert Benchley had done for years in American short subjects. Among those are the Practical Joker who will do anything for a laugh; the Party Entertainer who never stops singing; the Talkative Neigbor who forgets the time; the noisy neighbors who dance the tango all night; and women drivers, people who telephone at meal time, the friend you never saw before and amatuer medical experts. Much use of trick photography, montages, puppets and animation along with some adult Gallic wit and gentle satire.