Making it as an actor isn't the easiest thing to achieve - in fact, you could go as far as to say that hitting the big time as a movie star is one of the most difficult things to do in life. It's not all about how talented an actor is - often it's as much to do with finding the right role to catapult you into the limelight. Even the biggest names in Hollywood had to start somewhere. Whether their careers began in a popular television series or cutting their teeth on small, independent movies, they earned their proverbial stripes as they continued to take on roles waiting for that big break; the breakthrough performance that would send them into the "hot property" category where the sky becomes the limit. The same can't always be said for their co-stars - an actor might deliver a breakout role but there's absolutely no guarantee that this will be the case for everyone else in the cast, and often the other actors find themselves left by the wayside, their careers floundering as they watch with envy as all the glory goes to someone else. Here are ten actors who appeared in films which all but ended the careers of their co-stars, yet still went on to become megastars in their own right.
