Kristen Stewart is a great vampire according to her co-star Jamie Campbell Bower.
Bower is set to reprise the role of Caius in Breaking Dawn - Part 2, the final novel in the Twilight Saga.
And the actor had nothing but praise for Stewart as he also talked about the dark tone of the final instalment.
Speaking to MTV NEws the actor said: "She's great as a vampire. I think she's perfect and they did a great job casting those movies.
"The film itself, it's much darker than the first three. It's got a grittiness to it. From our side, the Volturi side, you really get to find out how messed up these characters are and just how badass they are.
"We're really evil people. I was always like, we're not evil, we're trying to keep it cool, but they are nasty blokes.
"So from us, you get to see how screwed up we are. That was great fun to play, just screw about on set and do as much as possible and be theatrical."
Breaking Dawn has been split into two movies, the first part arriving in cinemas in November and the conclusion twelve months later.
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