Secret of Deep Harbor

The Secret of Deep Harbor is a 1961 film.

Reporter Skip Hanlon Ron Foster is in love with Janey Fowler Merry Anders, whose father Barry Kelley is a sea captain employed by the Mafia. The mob pay the captain to transport gangsters out of the U.S., but when a murder occurs, Skip blows the whistle on the captain. Janey sides with her father and goes on the run with him to Mexico, with Skip hot on their trail.

Source: Wikipedia