City Island is a beach-side neighborhood in the Bronx that’s so idyllic looking it’s hard to believe non-millionaires can afford to live there. Andy Garcia stars as hereditary homeowner Vince Rizzo, a prison guard — excuse me, “corrections officer” — who is also secretly an aspiring actor. When an inmate (Steven Strait) turns out to be his heretofore unknown son, he takes the handsome ex-con home without a word of explanation to anyone. This is a dangerous move, as his family is already seething with Italian-American emotion. Wife Joyce (Julianna Margulies) is lonely and convinced that Vince’s alleged poker games — cover for the acting classes he takes from a curmudgeonly Alan Arkin — are cover for an affair. The Rizzos’ beautiful college student daughter (Garcia’s real life daughter, Dominik García-Lorido) is secretly stripping for cash. Meanwhile, their gawky teen son (Ezra Miller, the funniest person in the movie) is nursing a fetish involving the giving of culinary pleasure to obese women. The final turns of the screw are Vince’s friendship with a very pretty fellow acting student (Emily Mortimer) and an audition for, naturally, the latest Martin Scorsese crime epic. Yes, “City Island” is terribly contrived, but the film is full of funny dialogue, good acting, and genuine feeling that nicely papers over the problems. Writer-director — and sometime classic film blogger — Raymond De Felitta is no visual stylist and may be too eager too please, but he knows how to entertain.