Operation Mad Ball

Operation Mad Ball is a 1957 military comedy starring Jack Lemmon, Ernie Kovacs, Kathryn Grant, Arthur OConnell, and Mickey Rooney, and directed by Richard Quine. The screenplay is by Blake Edwards, Jed Harris and Arthur Carter, based on an unproduced play by Carter.

Soon, Hogan plans to organise a ball at an offlimits hotel with all the prettiest nurses and his fellow soldiers. Hogan and Cpl. Bohun Dick York go through all sorts of mishaps to make sure that the secret Mad Ball goes ahead. Hogan uses a Generals Xray and pretends it belongs to him to win the sympathy of Lt. Bixby, whom he wants to take to the ball. Hogan claims to be suffering from heartburn and an ulcer, and Bixby recommends dietetic changes. When Betty finds out that the Xray doesnt belong to Hogan, she falls out with him, leaving both Betty and Hogan secretly sad to have lost each other.On the night of the ball, each soldier has been paired with a pretty nurse, except Hogan. He waits for Bixby, hoping that she has forgiven him, but he ends up going to the ball on his own. When he arrives, he sees Betty with the Colonel. She takes off her long coat to reveal a pretty dress. At the end, she shares the last dance with Hogan. ........

Source: Wikipedia