According to Autograph Magazine, the world’s authority on duh, autographs, funnyman Will Ferrell is the worst autograph signer in Hollywood. And the best? Johnny Depp. Othe celebs to make the “BEST” list include Matt Damon, George Clooney and cutie Dakota Fanning. Meanies in the “WORST” list include sullen types like Joaquin Phoenix and John Malkovich and blonde bigheads like Renee Zelwegger.