The Young Girls Turn 25
Les demoiselles ont eu 25 ans (original)
Starring Catherine Deneuve, Agnès Varda, Michel Legrand, Jacques Perrin, Bertrand Tavernier, Mag Bodard, Bernard Evein, George Chakiris, Danielle Darrieux, Jacques Demy
It's a documentary and musical movie, and has a rating of 7 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Brazil.