Citizen Mavzik (1970)

Mavzik, an eccentric, retired Russian colonel, attempts to marry his sons off to "proper" girls of his choosing. But living in sunny and exotic South Florida, the two young men have other ideas. When they both unwittingly begin to date the same attractive girl-next-door, Mavzik's plans are thrown into chaos. At the same time, he must come to terms with becoming a US citizen.