Sam Worthington Lunges at Ed Harris for 'Man on a Ledge'
The co-stars filmed a fight scene, which started with Sam lunging at Ed.
The pair were joined on set by Kyra Sedgwick, who laughed along while the men fought!
Sam has been hard at work for the past month filming the movie, which is not due in theaters until 2012.
10+ pictures of Sam Worthington and Ed Harris filming a fight sequence…