Boy on a Dolphin

Boy on a Dolphin is a 1957 20th Century Fox romantic film set in Greece and shot in DeLuxe Color and CinemaScope. It was directed by Jean Negulesco and produced by Samuel G. Engel from a screenplay by Ivan Moffat and Dwight Taylor, based on the novel by David Divine.

Phaedra Sophia Loren is a poor Greek sponge diver who accidentally finds an ancient Greek statue of a boy riding a dolphin on the bottom of the Aegean Sea. Her efforts to sell it to the highest bidder lead her to two competing individuals Dr. James Calder Alan Ladd, an honest archaeologist with an academics bankroll, and Victor Parmalee Clifton Webb, a wealthy but unscrupulous art collector.Calder, a museum curator, is committed to seeing the statue handed over to the rightful Greek authorities. Parmalee seeks to outwit him and add the treasure to his private collection. Phaedra throws in with Parmalee, but ends up romantically involved with Calder, with predictable complications all round. ........

Source: Wikipedia