Le Million (1931)

Impoverished artist René Lefèvre is thrilled to discover that he has won the Dutch lottery, only to have his hopes dashed when he learns the winning ticket is in the pocket of a coat his girlfriend Annabella had given to a mysterious thief who appeared in her apartment. Thus begins a race around the city as Lefèvre and his best frenemy Jean-Louis Allibert try to locate the jacket which has since been sold to a visiting Italian opera star. I was really surprised that such a fun, energetic musical was produced so early in the sound era, especially in French by a director who was reticent at the advent of sound pictures.