Heaven Knows, Mr. Allison

During World War II, an American marine and an Irish nun form an unlikely friendship after being stranded on a South Pacific island. They find comfort in one another while hoping for a rescue, as they try to avoid capture by the Japanese.

Heaven Knows, Mr. Allison is a 1957 drama adventure movie directed by John Huston, starring Deborah Kerr, Robert Mitchum. It holds an IMDb rating of 7.3/10 from 10,346 votes and runs 1h 47m.