Sam Claflin joins Kristen Stewart, Charlize Theron, and Chris Hemsworth in the action-packed movie Snow White and the Huntsman. We sat down with the actor, who plays Prince William, at a recent press day near London, where he described the experience as a "dream come true." He shared stories of the on-set fun and admitted that his biggest challenge was with horseback riding. Sam also talked about working with the "charming" Kristen and even touched on being caught in the film's love triangle. Check out our interview with Sam, and make sure to see SWATH when it hits theaters on June 1.