Island of Love.

Con artist Steve Blair persuades Tony Dallas, a Manhattan gangster, to finance a movie about Adam and Eve by offering the female lead to Tony's stripper girl friend, Cha Cha Miller. The film is such a disaster, however, that Steve and his writer, Paul Ferris, decide to escape on a freighter to Greece. En route, Steve learns that the island of Paradeisos has lost its tourist trade because it has no apparent historical or mythological heritage. Intrigued, he hits upon the scheme of turning Paradeisos into a legendary island of love and taking a cut from all commercial enterprises. After planting Greek antiquities in the waters surrounding the island, Steve induces Paul to "recover" them, thus causing the tourist trade to increase.