7. Arnold Schwarzenegger
Once upon a time Arnold Schwarzenegger was the biggest action star in the world, starring in classics such as the first two Terminator movies, Total Recall and Commando before appearing in some unsuccessful flicks and entering the murky world of politics, staying out of the film business for an extended period of time in the process. Schwarzenegger was never a particularly good actor, but his enormous size and unbeatable charisma made him a huge star and leading man, though age and boredom caught up with the man and he no longer seems to have the burst of excitement he had in his 80's heyday. He is restricted by the fact he cannot do anything outside of action movies (and to a lesser degree, comedy), but he is going to have to come to the realisation that his days as an actor are numbered. The Tomb, in which he co-stars with Sylvester Stallone, 50 Cent and Jim Caviezel, is going to be his last big shot at proving he can still do it, but if recent efforts are anything to go by, it is going to be another failure and it should be the film that closes the lid on Schwarzenegger's career.