Hollywire's very own Chelsea Briggs hit the red carpet for the much anticipated sci-fi flick, 'I Am Number Four'! The stars of the film including Dianna Agron, Alex Pettyfer, Teresa Palmer, Callan McAuliffe and Kevin Durand all chatted about super heros and Glee! Other celebrities in attendance include Matt Lanter, Ariel Winter, Bella Thorne and Chloe Moretz.