Susan Slept Here is a 1954 American romantic comedy film starring Dick Powell (in his last film role) and Debbie Reynolds. Shot in Technicolor, the film was based on the play of the same name by Steve Fisher and Alex Gottlieb. The film's plotline was later used again by director Frank Tashlin for 1962's Bachelor Flat. Wikipedia
Sergeant Monty Maizel: Remember you guys, she's underage. Lay one hand on her and that's all brother.