This week in theaters, scientists Sigourney Weaver and Cillian Murphy try to debunk superstar psychic Robert DeNiro in Red Lights. Director Michael Winterbottom and star Frieda Pinto craft a distinctively modern take on Tess of the d'Urbervilles in Trishna. And a Texas family's long-lost son is not quite as he seems in the gripping documentary The Imposter. Also out this week: Jason Biggs and Joel David Moore take on city politics in the fact-based comedy/drama Grassroots, and the Sundance sensation Beasts of the Southern Wild widens its release. Be sure to catch our reviews of other recent theatrical films: The Amazing Spider-Man, Savages, The Do-Deca-Pentathalon, Magic Mike, Take this Waltz, Brave, Seeking a Friend for the End of the World, To Rome With Love, Your Sister's Sister, Rock of Ages, Prometheus, and Moonrise Kingdom.