Made in B&W starring James Cagney, Doris Day, Gordon Macrae, Virginia Mayo and Gene Nelson. Elwin 'Bix' Bixby (Cagney) is an unemployed Broadway musical director who agrees to stage the annual 100th Night show at West Point ... and he manages to persuade the military to let Doris Day come and appear in the show. Yes, Gordon Macrae and she fall in love!
So some good songs and a musical but positive look at the American training establishment.
Here is a promo form the film.