The US Navy fights aliens in Battleship, a blockbuster based on a children’s game; Bill Nighy retires to India in the comedy The Best Exotic Marigold Hotel; Maggie Gyllenhaal falls for the inventor of the vibrator in the comedy Hysteria; former rock star Sean Penn hunts Nazis in the offbeat comedy/drama This Must Be the Place; and Zac Efron searches for a special someone in the romance The Lucky One.