'Scream 4' shuffle: The 411 on Lauren Graham's exit, Adam Brody's entry and script changes

lauren-graham-adam-brody.jpgWhat is going on with "Scream 4"? These cast changes are making us dizzy. Though Lauren Graham confirmed her role in the highly anticipated slasher flick just 10 days ago, she's no longer involved with the production.

Sources close to the production tell Zap2it exclusively that there have been some very significant script changes... and the changes aren't all good. In Kevin Williamson's original script, Graham's role was "a fun role. Not big, but it had some meaty scenes." Shooting began this week, and in the latest draft, "the part was reduced. She had like four lines."

Another source says, "The script changes have put a real strain on the cast. The original 'Scream' cast members aren't happy with the way that things are happening, so it's probably a good thing that [Graham] dropped out before things get messy."