Sienna Miller 'compromised' by G.I. Joe

Sienna Miller has refused to star in the sequel to 'G.I. Joe'.

The 29-year-old actress - who played Ana Lewis in the blockbuster action movie - has ducked out of appearing in the second instalment of the film because she thinks it made her "compromise" herself.

She explained: "I think I compromised myself with that movie. It wasn't the kind of film I would like to see and it sort of made me evaluate why I'm doing this.

"I realised that unless it was a film I really loved, I didn't want to be away working. Because I'm getting to the stage where I want to work to live, not live to work, if you see what I mean. I don't want to a film that I wouldn't even go to see."

Instead, Sienna - who is currently starring in 'Flare Path' in London's West End theatre district - revealed she plans to expand her theatre repertoire.

She added to Stylist magazine: "I want to learn more and become cleverer, and work with great directors. I'll do another play in London in the fall, I think."

Sienna recently signed up to play a belly dancing housewife in 'Just Like a Woman'.