Will Smith is the king of Fourth of July blockbusters -- and this year, he's blowing up the screen as "Hancock." Now "Extra" is going behind the scenes of the superhero flick, where Will opened up about "Extra" correspondent AJ Calloway's training sessions with Lance Armstrong. Smith jokingly teased Calloway, saying, "I'm marathon material son -- marathon material over here, kid."
The playful attitude continued as "Extra" sat down with Smith's stunning co-star Charlize Theron -- and Will crashed the interview! "You have to always steal my limelight," joked Charlize. Theron also kidded about kicking Smith's butt, saying, "He was incredibly scared, because I am so ripped and I am stronger than him!"
Watch Will and Charlize in action when "Hancock" comes flying into theatres July 4th.