Matt Damon’s in Paris filming The Bourne Identity. Ben Affleck’s resting up from Pearl Harbor. So the job of slogging through the more than 7,000 screenplays submitted for the producing duo’s Greenlight filmmaking contest is being left in the hands of… web surfers. But not just any online film geeks. The top 250 entries will be selected by Greenlight’s own community, with contestants doubling as reviewers of their rivals’ work (results will be posted Nov. 18 at www.projectgreenlight.com; the winner will be named March 1). Stakes are high: The victor gets the chance to make a film for Miramax and have the process documented for an HBO series. So what’s to keep contenders from flaming each other’s scripts? Says Miramax Television chief Billy Campbell: ”When we first started, we looked at each other and said, ‘Why would anyone give a script they’re competing against a good review?’ It’s because you realize, when you’re reading someone else’s script, they’re reading yours.” Lights! Action! Log on!