At the 54th BFI London Film Festival I had the great pleasure of catching up with Vincent Cassel and Mila Kunis to talk about Darren Aronofsky’s fantastic new film ‘Black Swan’. The film is breathtaking, you won’t see a more haunting yet completely enchanting movie this year. Check out what they had to say below. If you missed my interview with Natalie Portman for the film you can find it here.

What was it like working with Natalie? She must have been very consumed by this demanding role.

Vincent Cassel: It was easy working with her, very easy. She was very focused on the dancing. I was very impressed by the amount of work she put into her physical transformation as a dancer. With our scenes together, she really went for it, she’s not like a typical actress who doesn’t want to kiss or whatever, she really just goes for it. And she did it really well, so it was easy.

Mila Kunis: She was absolutely fantastic to work with, I was very lucky that I got to work with a friend of mine. She’s a brilliant actress and amazing to watch, and she’s great off screen.

Vincent Cassel: But what about the kissing Mila, do you agree with me (laughs)?

Mila Kunis: Yes….What he said (laughs).

What was the hardest part of your role Mila? I read you suffered some injuries.

Mila Kunis: The physicality really was the hardest, everything else kind of came alongside that. Just transforming your body at the age of 26. I wouldn’t say I was alone in this, I think everybody across the board….if they played a dancer somehow, somewhere they got hurt. I’d say that was the most challenging for myself.

Do you find that dancers and actors are different breeds? Do they approach their work in a very different way to actors?

Mila Kunis: Yes and no, both are incredibly competitive in a certain way. Dancers have a perception of perfection that I don’t think actors necessarily do, actors always feel that for every part there is always something they can do differently and that there is no such thing as perfect. Where as a dancer spends their entire career trying to achieve something that is impossible, but they’re both incredibly disciplined. I’ve never met anybody in any industry as disciplined as a ballerina, I’ve seen actors call in sick, but I’ve never seen a ballerina call in sick, and that’s a testament to their work ethic.

Vincent, your character definitely seems to talk the director talk, is there anyone in particular that you studied for your part?

Vincent Cassel: Yes but it’s not Darren (laughs). Maybe on some levels. When I was much younger I had the opportunity to be really close to a man called Michael Bennett, who was the director of Chorus Line, Dreamgirls, Ballroom, he was actually one of the biggest Broadway directors ever and a good friend of the family. My father actually had a part in one of his plays ‘Chorus Line’, in London. So I have seen him work with the dancers, and he was really close to what I’m doing in the movie. Meaning that he was a jerk with the dances, but it was only to get them where he wanted them to go. However he was gay and that’s a pretty big difference because my character is not gay at all, he uses his sexuality to direct the dancers. He’s actually using his sexuality to direct his dancers, so it was a different take. But it’s very much about this guy. It’s a mix of lots of guys. These guys move like they rule the world, at least in the ballet industry.

Black Swan is set for release in the UK 11th February 2011