Melissa Desormeaux-Poulin plays Jeanne Marwan, a math instructor who goes on a grim scavenger hunt to piece together her mother's life, in director Denis Villeneuve's adaptation of the play Incendies by Quebec writer Wajdi Mouawad. Sabrik Hakeem/Sony Pictures Classics hide caption

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Robin Wright plays Mary Surratt with a sense of "essential decency," says movie critic David Edelstein. Wright stars in Robert Redford's movie about the real-life trial of the woman who ran the Washington boarding house where John Wilkes Booth regularly stayed. Claudette Barius/Claudette Barius/Roadside Attractions hide caption

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Rated X-tra-naughty: Natalie Portman, Danny McBride, James Franco and Zooey Deschanel star in a medieval sword-and-sorcery spoof that strays often into beyond-kinky territory — and plays it so resolutely straight that the profane seems downright divine. Frank Connor/Universal Pictures hide caption

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In James Wan's terrifying thriller Insidious, Patrick Wilson and Rose Byrne play the parents of a child who may have been possessed by evil spirits. John Darko/FilmDistrict hide caption

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Win Win questions just how far small-town lawyer and high school wrestling coach Mike Flaherty (Paul Giamatti, left) will go to ensure a winning team. He has taken in a client's grandson (Alex Shaffer) — a talented but troubled teen. Kimberly Wright/Fox Searchlight hide caption

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In Abbas Kiarostami's Certified Copy, Juliette Binoche plays a gallery owner who pretends a British author, played by William Shimell, is her husband for an afternoon. "If you love the idea that our relationships are fluid, the movie will ping-pong around your mind for days," says David Edelstein. /IFC Films hide caption

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The monks' decision to remain in Algeria leads to their eventual kidnapping and murder, but director Xavier Beauvois wisely focuses on what preceded their faith-based sacrifice. Sony Pictures Classics hide caption

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When Jason Sudeikis (left) and Owen Wilson get a free pass to cheat, they start by going to Applebee's — not exactly known as a watering hole for singles. Peter Iovino/Warner Bros. Pictures hide caption

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After Martin takes a cab driven by Gina (Diane Kruger), things go awry. Martin wakes up four days later — in a hospital — and finds no one has been looking for him. Jay Maidment/Warner Bros. Pictures hide caption

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He Wants You And You And You: Canadian pop star Justin Bieber can make teenage girls — and his marketing team — scream, moan and weep with delight. Paramount Pictures hide caption

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Thomas Dekker plays Smith, a sexually "undeclared" college freshman who is equally smitten with his shaggy-blond roommate Thor, a British femme named London, a hot-tub designer and women who appear only in his dreams, in Gregg Araki's Kaboom. Marianne Williams/IFC Films hide caption

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Emma (Natalie Portman) just wants to sleep with Adam (Ashton Kutcher) — she doesn't expect him to fall in love with her. Dale Robinette/Paramount Pictures hide caption

itoggle caption Dale Robinette/Paramount Pictures

A Superheroic Friendship: After his media-mogul father dies, Britt Reid (Seth Rogen) uses the family's fortune -- and chauffeur, Kato (Jay Chou), -- to become The Green Hornet, a masked crime fighter. Jaimie Trueblood/Columbia Pictures hide caption

itoggle caption Jaimie Trueblood/Columbia Pictures

Dean (Ryan Gosling) is content centering his life around his family; he must reconcile his desires with his wife's ambitious career plans in Derek Cianfrance's Blue Valentine. Davi Russo/The Weinstein Co. hide caption

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Jennifer Lawrence in Winter's Bone Sebastian Mlynarski hide caption

itoggle caption Sebastian Mlynarski