Les copains du dimanche ('Sunday's Friends') is a 1958 film which stars Jean Paul Belmondo.

The film promoted the trade union movement and was not seen in commercial cinemas.

[1] Trebois, a young laborer, is looking for something to occupy his Sundays, "a glorious activity to make the six working days fly by."

One day, in the cafeteria, Casti's friend suggested that he join a flying club.

After the flight, Trebois decides that he experienced the best moments of his life in the air.