Matthew McConaughey will make an uncredited cameo in "Tropic Thunder," the Ben Stiller-directed DreamWorks comedy reports Variety.
Stiller, Jack Black, Robert Downey Jr., Nick Nolte, Bill Hader and Steve Coogan all appear in the project about a group of actors who gather on a remote island to shoot a big-budget war movie and are forced to become the soldiers they are playing.
McConaughey takes the role that Owen Wilson left after he was hospitalized. Shooting is underway in Hawaii.
