Designing Woman (1957)

When Mike Hagen and Marilla Brown marry after a whirlwind romance on the West Coast, they return to New York to find that they don't have much in common. She is a clothing designer who lives in a swanky apartment and whose friends are actors, artists and the like. He is a sportswriter who likes to go boxing matches and horse races. They clearly love each other and make every effort to be flexible. When a mobster, whom Mike has been accusing of fixing sports events, decides to go after him he must pretend to be out of town and mayhem ensues.