Beneath the 12-Mile Reef (1953)

Beneath the 12-Mile Reef is a 1953 American adventure film directed by Robert D. Webb. The screenplay by A. I. Bezzerides was inspired by Romeo and Juliet by William Shakespeare. The film was the third motion picture made in CinemaScope, coming after The Robe (film) and How to Marry a Millionaire.
Plot
Mike and Tony Petrakis are Greek American father and son sponge diving entrepreneurs who find themselves in competition with the Rhys family, White Anglo-Saxon Protestant fishermen who are prepared to resort to violence and even murder to maintain their established fishing grounds off the Gulf Coast of the United States of Florida. Run-ins between the two clans lead to an exchange of threats and all-out brawls. Further complications ensue when Tony Petrakis meets Gwyneth Rhys, and the two fall in love.
Production
The film was shot on location in Key West and Tarpon Springs, Florida.< name=NYT></>
Cast
Robert Wagner as Tony Petrakis
Terry Moore (actress) as Gwyneth Rhys
Gilbert Roland as Mike Petrakis
J. Carrol Naish as Socrates Houlis
Richard Boone as Thomas Rhys
Angela Clarke as Mama Petrakis
Peter Graves as Arnold Dix
Jay Novello as Sinan
Jacques Aubuchon as Demetrios Sofotes
Gloria Gordon as Penny Petrakis
Harry Carey, Jr. as Griff Rhys
Rev. Theophilus Karaphillis as Greek Priest at Epiphany

From publicdomainmovies.net