Kristen Stewart hit the 2012 Cannes Film Festival to debut her latest film, "On the Road." Adapted from Jack Kerouac's Beat Generation novel, the film centers on writers Dean Moriarty (Garrett Hedlund) and Sal Paradise (Sam Riley) as they journey across America with Dean's wife, Marylou (Stewart), living in a whirlwind of sex, drugs and writing.
Despite the American classic being considered unadaptable, director Walter Salles took on the ambitious project, much to the dismay of critics. While they say the movie remains faithful to the book, they feel the film version lacks the spark Kerouac carried throughout the novel.