Not with My Wife, You Dont (1966) Tony Curtis, Virna Lisi, George C. Scott

During the Korean War, Italian nurse Julie Ferris (Virna Lisi) falls in love with two American fliers, Tom Ferris (Tony Curtis) and Tank Martin (George C. Scott). Julie marries Tom after he convinces her that Tank has been killed in a plane crash. She soon discovers Tank is alive, but remains happily married to Tom until Tankt reenters their lives 14 years later.