40. Arnold Schwarzenegger
Worst Performances: Red Heat (1988), Last Action Hero (1993), Jingle All The Way (1996), Batman & Robin (1997)
We love Arnie's action classics as much as the next gym-obsessed-guy, but let's be honest: Nobody watches any of the ex-governor's movies for the acting. That's because Schwarzenegger's flicks include more ripped-apart English than explosions, unintentionally morphing even the surliest of his performances into comedy.