Per Variety, Helena Bonham Carter has been tapped to play diabolical meat-pie maker Mrs. Lovett in Tim Burton's big-screen adaptation of Sweeney Todd, starring Johnny Depp. What. A. Surprise.... Jennifer Aniston will produce and possibly star in Counter Clockwise, a dramedy about Harvard psychologist Ellen Langer's study in which she reversed the aging process of her subjects by making them think they were younger.... Djimon Hounsou will play an aspiring concert pianist fighting to escape the ghetto in The Trunk.