About the movie:
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 of the same name by David Divine.
The film was Sophia Loren's English language debut. She starred opposite Alan Ladd and Clifton Webb, with Alexis Minotis and Laurence Naismith in support. Hugo Friedhofer's score was nominated for a Best Music Academy Award in 1958. Cinematography was by Milton Krasner. It was the first Hollywood movie shot in Greece.
Phaedra (Sophia Loren) is a poor Greek sponge diver on the island of Hydra. She works from the boat of her boyfriend, Rhif (Jorge Mistral), an illegal immigrant from Albania. She 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 who will surrender it to Greek authorities, and Victor Parmalee (Clifton Webb), an aesthete and an unscrupulous dealer with a history of trying to acquire works of art stolen by the Nazis from their owners.
Calder and Parmalee each try to win Phaedra's cooperation. She works in concert with Parmalee, while developing feelings for Calder. When she seems to waver, Rhif decides to make the deal with Parmalee work. The film reaches a happy conclusion, with virtue rewarded, the statue celebrated by the people of Hydra, and Phaedra and Calder in each other's arms. Parmalee, a man with no apparent national loyalties or heritage, sets course for Monte Carlo.
The film's world premiere on 10 April 1957 in New York was a benefit for Queen Frederika's Fund for Greek Orphans.
https://en.wikipedia.org/wiki/Boy_on_a_Dolphin
Also:
http://www.imdb.com/title/tt0050208/
Мальчик на дельфине
Прекрасный греческий остров Гидра. Красавица Федра зарабатывает на жизнь добыванием губок с морского дна. Однажды, ныряя, девушка натыкается на затонувший корабль и обнаруживает древнюю золотую статую мальчика, сидящего верхом на бронзовом дельфине. Понимая, что ее находка может принести семье много денег, Федра отправляется в Афины. Там она знакомится с хитрым коллекционером Виктором Пармали и ученым Джимом Колдером. Оба горят желанием взглянуть на историческую ценность.
https://www.kinopoisk.ru/film/malchik-na-delfine-1957-8590/