A Ship Full of Papadopoulos (1966)

In search of a better future, five impecunious nephews of the affluent Greek-American, Pelopidas "Pel" Papadopoulos, a successful and self-made businessman in Detroit, Michigan, embark on a long trip to bustling New York City. As the unfortunate quintet returns to Greece empty-handed, aboard a luxurious cruise ship, mischievous Pel, who travels incognito, decides to put his nephews' loyalty to the test, bent on discovering who is worthy of inheriting his immense and hard-earned fortune. And before long, Pel concludes. Who deserves to bear the glorious Papadopoulos name?