Ashton's Mate Spills All

Rob Corddry Sky Showbiz has been chatting to Ashton Kutcher's co-star Rob Corddry.

And he's given us the backstage goss on their latest film.

But be warned - some of it is slightly disturbing.

Rob took some time to fill us in at the London premiere of What Happens In Vegas, a hyperactive rom com in which he plays the part of Ashton's best mate, alongside Ash's love interest/rival Cameron Diaz.

"There was absolutely nothing bad about it," Rob said when Sky Showbiz quizzed him on what it was like to work with Cam 'n' Ash.

But he then backtracked on his previous kind words, saying that there had been, "Non-stop laughter, almost annoying laughter. In the middle of laughing we'd be like that hurts so much from laughing.

"And then we'd throw up. Laughter makes you throw up if you do it too much."

Nice.

Rob also 'fessed up to his fears of working with prankster Ashton on set, saying:Ashton's Vegas Night

"I actually thought, what if I'm being punked and this is not even a movie?"

However, the most alarming part of the chat came when Rob was pressed to give a bit more backstage goss.

He leaned in close and said in a confidential tone: "Ashton murdered someone, he's a murderer..."

Now how's that for scandal?

Only we have to say, we think he's kidding.