Wealthy Elmer Stuyvesant tries to court an unwilling shopgirl during a recruiting parade, and his chauffeur decides to join the Army. While trying to hire a new chauffeur, Elmer stumbles upon a recruiting office; and before he can protest, he is being given an induction physical. His aristocratic hauteur is soon flattened by a tough sergeant, Brophy, but he finds solace in the charms of Mary, a canteen girl; and when sent to the front, he becomes a hero by accident. More on Wikipedia
Watch Doughboys (1930)