FROM MTV.COM: The list of iconic film roles that almost went to other actors is a long and continuous one. O.J. Simpson as the Terminator? Kurt Russell as Han Solo? Eric Stoltz as Marty McFly?! To this bunch, add Matt Damon and Jake Gyllenhaal.
As James Cameron confirmed to MTV News, both those A-listers were being considered for the starring role of Jake Sully in "Avatar," a part that ultimately went to then-unknown Australian actor Sam Worthington.