Los Angeles - Facebook has pulled an interactive ad campaign for Universal's "Untraceable" due to its gruesome torture depictions, Variety reports. The campaign, created by marketer Picture Production Co., gradually unveiled more graphic elements of a torture sequence from the film as more users visited the film's Facebook page. "I am surprised and disappointed that Facebook has taken this action," PPC head of interactive Dan Light told Variety. "These sorts of social media campaigns are the only way to be competitive at the moment.