25 Jul – You would think that Snow White would fall for the Huntsman after sharing a kissing scene together in Rupert Sanders' "Snow White And The Huntsman", but no, the actress, Kristen Stewart, went for the man behind the camera instead. According to NY Daily News, Kristen Stewart reportedly cheated on her "The Twilight Saga" co-star Robert Pattinson with Sanders, who is not only married, but is twice her age. For those who are crying foul, US Weekly has revealed on Tuesday that they are set to publish photographs of a "marathon make out session" between Stewart, 22, and Sanders, 41. According to a representative from Kristen's agency, the actress is "devastated" by her betrayal of Pattinson, 26, her boyfriend of three years. "It was a mistake and a complete lapse in judgment," said the source. The source added, "She wasn't having an affair with Rupert. It was just a fleeting moment that shouldn't have happened. She never meant to hurt anyone. She's a good person who just made a bad choice." No comments have been made from Sanders' camp. The director is married to model Liberty Ross, with whom he also fathered two young children. Kristen is set to appear in the Walter Salles-directed film adaptation of the Jack Kerouac cult classic novel of the same name, "On the Road", alongside Sam Riley and Garrett Hedlund. She will also reprise her role as Bella Swan in the final instalment of "The Twilight Saga: Breaking Dawn – Part 2". "The Twilight Saga: Breaking Dawn – Part 2" will be released in cinemas in Malaysia and Singapore this 22 November.