Gemma Arterton always wanted to be a Rock Star.

The 'Prince of Persia: The Sands of Time' actress dreamed of taking to the stage when she was younger but now accepts the closest she will ever get to achieving her ambition is to portray a musician on the big screen.

She told NME.com: "Music is my biggest passion aside from anything else. I was in lots of Dodgy bands growing up and I always fancied myself in a band. But, you know, I was rubbish at writing music. So maybe one day I'll play a rock star, or a punk rocker."

However, the British star isn't interested in landing a role in the forthcoming biopic of Nirvana frontman Kurt Cobain, and believes unknown stars should be cast as the tragic rocker and his widow Courtney Love.

She explained: "Maybe they should find someone new, because when you're playing an iconic character, if you get someone really famous to play them, sometimes you're watching someone really famous play someone else, and it's nice when it's a completely new person".

Gemma recently admitted she finds it "strange" seeing herself in movies.

She said: "It's very strange and surreal when I see myself in 'Quantum of Solace' or 'Clash of the Titans', especially 'Prince of Persia'.

"When I first saw this movie it took me a while to get my head around the fact that I was in it. I was a very normal girl and all of a sudden I'm there with Jake Gyllenhaal. It's very strange for me and I always saw myself doing theatre and little jobs. I never thought I'd be in anything like this. Now that these films are coming I still find it very strange."