He said: "After the last one comes out, you can kind of have two failures - and they'd better be low budget failures. Because if you have one big-budget failure, you're pretty much done in this environment.
"It's different from Kristen, for example. She doesn't like about it like that at all, because she grew up gradually, doing independent movies and stepping up the ladder, whereas I was doing progressively smaller movies in England after 'Harry Potter'.
Justin Bieber, Lady Gaga, Katie Perry and other stars jet into Belfast
Lucky Leprechaun may be fired from Lucky Charms cereal
'Twilight's' Robert Pattinson says Kristen Stewart is a cooking 'nerd'
"I'm not just another actor who's around a jobbing. When you hire me for a job, you're hiring . I'm not this 'thing that's supposed to be something. And if you then don't fulfil that expectation, what the f**k are you?"
However, the hunky star admits he is keen to be seen as more than just the guy from 'Twilight'.
He added to The Observer Magazine: "If I do decide one day to stop acting, I just hate the idea of people going, 'Oh, did you ever do anything else besides that 'Twilight' thing?' "