Nia Vardalos plays Toula Portokalos, a single Greek woman who falls in love with a non-Greek (John Corbett), which is a no-no to her strict family -- especially her commanding mother, Maria (Lainie Kazan), and her traditional father, Gus (Michael Constantine). Think of it as a cross between Meet the Parents and Guess Who's Coming to Dinner … with a flavoring on the souvlaki side.