Julia Roberts is furious that Catherine Zeta-Jones has been given top billing on a movie poster for Ocean's Twelve, according to the Teen Hollywood website.

Catherine Zeta-Jones is listed in fourth place on the poster, behind George Clooney, Brad Pitt and Matt Damon. However, Julia's name appears at the bottom.

An insider revealed, "Julia's not happy. She was in the original 'Ocean's' film - Catherine wasn't - and she assumed her name would be first."