Given what his movies cost to make, what he's paid to appear in them, and what they bring in at the box office, Vince Vaughn ranks No. 1 on Forbes magazine's Ultimate Star Payback List. The comedian's films earned $14.73 for every dollar he was paid, the magazine said. Because they took sizable pay cuts to appear together in Ocean's Twelve and Ocean's Thirteen , Matt Damon, George Clooney,Brad Pitt and Julia Roberts also ranked high on the list. However, Will Ferrell, Jim Carrey and Nicole Kidman landed at the bottom for receiving huge salaries for films that flopped. But the magazine also noted that some films would never be produced without a top movie star being brought on board with the promise of a huge payday. "When Cameron Diaz attaches herself to a script," the magazine noted "suddenly the producers can hire the hottest director and supporting actors and secure a good date for the film's release. Without a star, the same script can sit in limbo for years."