Perfect Strangers (1986)

Balki Bartokomous, a sheepherder from the small Mediterranean Greek-like island of Mypos, travels to the United States in search of his relatives. He finds his cousin, Larry Appleton - who has recently 'escaped' from his large-sized family and is reveling in the unaccustomed luxury of having his own room to himself. They end up sharing accommodation in Larry's apartment - even though the two cousins could not be more dissimilar. For, while Larry is panicky, hyperventilative, business-like and mercenary - Balki is placid, unharried, sunny-natured and idealistic.