The 'Bourne' actor had known the movie was going to be successful, but he had to turn down an offer to star in it because of scheduling issue.
A scheduling conflict forced Matt Damon to turn down the chance to be part of the most successful film ever made - he said no to "Avatar". The actor admits he was in talks with director James Cameron to take the lead in the 2009 sci-fi epic but there wasn't enough time for him to take on the project in between "The Bourne Ultimatum" and "Green Zone".
He reveals, "I talked to Cameron and I read the script and I knew the movie was gonna be a big hit. I really wanted to do Avatar and work with Jim Cameron and watch him direct and learn a lot." He continued, "But we were finishing The Bourne Ultimatum and I couldn't leave; it was a scheduling issue."
Sam Worthington stepped in to replace the actor in the film.