In the new movie “Draft Day,” in which Kevin Costner wheels and deals as general manager of the Browns, one of the methods the Browns used to judge quarterbacks was to give each a playbook and tape a $100 bill to the last page. The quarterbacks were then asked to send the playbooks back, and if the $100 bill was still there, the team knew the prospect didn’t read the entire playbook or had lied about doing so. Ivan Reitman, the movie’s director, appeared on comedian Dennis Miller’s syndicated radio show last week and spoke about how that detail was added to the flick. “Denis [Leary] actually went to Bill Belichick for help,” Reitman said of the movie’s other star, who plays the Browns’ coach. “He told him we had the story — you’ll know it when you see it — of the $100 bill. Belichick said, ‘How’d you know about that?’ “And Belichick said, ‘Look, I invented that.’