The Milky Way
The Milky Way is a 1936 American comedy film starring Harold Lloyd. Directed by comedy veteran Leo McCarey, the film was written by Grover Jones, Frank Butler and Richard Connell based on a play of the same name by Lynn Root and Harry Clork which was presented on Broadway in 1934.
Timid milkman Burleigh Sullivan (Lloyd) works for the American company, Sunflower Dairies. Two drunk men try to chat up Mae, Burleigh's sister, and he chances by. In an ensuing brawl, Speed McFarland, the world middleweight champion, gets knocked out (but Burleigh never in fact threw a punch; he merely ducked to get out of the way of a punch which brought the champ down).