Nicholas Hoult Reacts to His Back-to-Back MAJOR Hair Transformations (Exclusive)

Nicholas Hoult chats with ET's Cassie DiLaura at the premiere of 'Superman,' in theaters on July 11. The actor reacts to his back-to-back hair transformations after shaving his head for the film, then dying it bleach blonde for another project. Plus, he shares whether he would do another villain role after playing Lex Luthor.