34. Matthew McConaughey
Worst Performances: Reign Of Fire (2002), Sahara (2005), Failure To Launch (2006), Fool's Gold (2008), Surfer, Dude (2008)
In 1993's Dazed And Confused, Matthew McConaughey's ambivalent stoner routine worked like a charm, resulting in a scene-stealing performance. Who could've guessed, however, that he'd stick to that script in every one of his subsequent roles, whether in dramatic fare (Two For The Money), comedic movies (How To Lose A Guy In 10 Days), or just plain excruciating duds (Fool's Gold). He's also made some of worst romantic comedies of the new millennium, films that our girlfriends force upon us during DVD nights at the crib. No movie has ended more of our relationships than The Wedding Planner.