OK so I heard this already from a source in LA and now that it is also in the NY Daily News let's set the record straight. Ashton is having fun at Michael Vartan's expense. He has been mocking him and saying poor Michael was Punk'd and was a big baby and did not sign the release forms.
What has come out now is that Michael was Punk'd but he did the same exact skit as Jesse Metcalf where he was tricked into thinking he was on an audition for an action hero role. So I guess Punk'd did the same thing with both stars because it was an easy thing to produce. Whether or not Vartan said no or Ashton realized Jesse was a better hit, I hope this story ends here. They just sound lame going back and forth.