Helen Mirren, Tom Wilkinson, and Ciaran Hinds are former Mossad agents whose mission to hunt down a Nazi war criminal in the '60s may not have been the huge success everyone thought it was.  In flashbacks they're played by Jessica Chastain from "The Help", a New Zealand actor named Marton Csokas, and "Avatar's" Sam Worthington.
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The last official lunar mission was Apollo 17, but this sci-fi horror film is about a secret 18th mission, where two American astronauts were sent back to the moon to find out what happened to some missing cosmonauts. (Think Paranormal Activity in space...)
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A group of college students are trapped on an island surrounded by a lake that's been stocked with hungry sharks.  3D carnage ensues.  The doomed cast includes Katharine McPhee, who parlayed her "American Idol" fame into an acting career.
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