In this SideReel movie exclusive, we go behind the scenes to talk to stars Dianna Agron and Alex Pettyfer about their roles in the upcoming sci-fi flick "I Am Number Four."
The newest sexy stud in Hollywood, Alex Pettyfer, made his US talk show debut today. Ellen told him first-timers always take their shirt off -- and he believed it!
!["I Am Number Four" Press Conference [November 20]](http://images4.fanpop.com/image/photos/17300000/-I-Am-Number-Four-Press-Conference-November-20-i-am-number-four-17392300-333-500.jpg)
!["I Am Number Four" Promotion Stills [HQ]](http://images4.fanpop.com/image/photos/22200000/-I-Am-Number-Four-Promotion-Stills-HQ-i-am-number-four-22241312-345-500.jpg)
