The King of the Bla Bla Bla(1950)

Overview:

Prosper Bourrache, who has the gift of the gab, is natural born street vendor. Due to a mistake he gets involved in the burglary of a shady banker's house. In fact, the whole operation is a setup. But Prosper will finally get away with it, have the crooked financier arrested and pinch his girlfriend away from him.