This is Hollywood's revenge movie against the Paparazzi, those goon photographers obsessed with getting celebrities' pictures at all costs, totally invading their privacy and often using the pictures in a dishonest way to invent gossipy stories for the tabloids.
This was an easy call for Hollywood because who was going to side against them in this film? If there was any doubt about any shred of decency concerning those photographers, this film quickly dispelled that with Tom Sizemore's character, a representative of that famous "press corps." They made Sizemore as sleazy and unethical as they could.
So what you wind you up with a basic revenge story, nothing new or earthshaking but almost always entertaining in whatever form. In this film, the photo guys mess up and the victim - an actor (Cole Hauser) - takes revenge by going after them. In the process, we see how he does it and along the way are treated to some amusing cameos by Mel Gibson, Chris Rock and Matthew McConaughey. Yeah, it's kind of a low-brow revenge flick, but it works. By the way, this is yet another film that should be rated R, not PG-13. That's as ludicrous as the paparazzi.