Variety.com is reporting that screenwriter Peter Iliff (“Patriot Games,” “Varsity Blues,” and “Under Suspicion”) has been tapped to pen an adaptation of the hit action gameshow “American Gladiators” for the big screen. The story would focus on the TV show’s characters as super-powered superheroes. “American Gladiators” first debuted on TV in 1988 and has since been broadcast in more than 90 countries around the world. NBC recently revived the show in 2008, in which contestants battle against the Gladiators in physical and athletic challenges. Scott Mednick is producing, and “American Gladiators” creator Johnny Ferraro is on board for the projects, which is being targeted for a tentative 2011 release, as…