Something Wild (1986)
A prototypical, wet-blanket yuppie (Jeff Daniels) is swooped away by the free-spirited, no-restraints Lulu (Melanie Griffith). They go on a wild adventure that helps the yuppie loosen up a bit, and fall in love along the way.
Modern Times (1936)
A factory worker loses his job and meets Ellen. She's a beggar who has been arrested for stealing (to feed her siblings) and is introduced with a knife in between her teeth. The factory worker ends up going to jail since he can get fed there, but he somehow can't lose the beggar. Once out of jail, they go on wacky adventures together was the factory worker turns to a more "free" way of living.