Mr. Deeds Goes to Town (1936)

Longfellow Deeds lives in a small town and leads a small-town kind of life, including playing the tuba in the town band. When a relative dies and leaves Deeds a fortune, Longfellow picks up his tuba and moves to the big city, where he becomes an instant target for everyone from the greedy opera committee to the sensationalist daily newspaper. Deeds outwits them all until Babe Bennett comes along. Babe is a hot-shot reporter who figures that the best way to get close to Deeds is to pose as a damsel in distress. When small-town boy meets big-city girl, anything can, and does, happen.