Superstar dubstep deejay Skrillex has signed on to compose some new original music for "Wreck-It Ralph," the next full-length feature film from Disney Animation.  The revelation was made at Comic-Con on Thursday by the studio, which previewed 10 minutes of the film, which hits theaters in November.  The announcement comes less than two weeks after the DJ landed his first motion picture scoring gig, for the Selena Gomez film "Spring Breakers."