We all have things we regret doing — stars are no different. In Hollywood, you have good scripts and bad scripts, good movies and bad ones. But if there is anything the actors on this list have learned: solid scripts don't always guarantee a good movie. Sometimes, misjudgments are made and you end up not really loving what you've created.
From Channing Tatum in G.I. Joe: Rise of Cobra and Lindsay Lohan in I Know Who Killed Me to Daniel Radcliffe in Harry Potter and the Half Blood Prince, we've rounded up the celebrities who, unfortunately, don't have too many positive things to say about the movies they've appeared in. Scroll through to find out which films these actors wish they could undo.