(Cover) - EN Showbiz - Sienna Miller says her film G.I. Joe: Rise of the Cobra compromised her.

The British actress is best known for starring in Layer Cake, Alfie and The Edge of Love. She starred in action adventure film G.I. Joe: Rise of the Cobra in 2009. The movie tells the story of an elite military unit comprised of special operatives known as G.I. Joe, who take on an evil organisation led by a notorious arms dealer.

Sienna who starred alongside Channing Tatum and Dennis Quaid in the film - has revealed acting in the 2009 blockbuster was a joke.

It compromised my values, she is quoted as saying by British newspaper The Daily Mirror. I didnt feel too good about myself. It was a joke.

Sienna, 29, also revealed that she didnt meet director Stephen Sommers in casting sessions. The beauty says that because she hadnt come face to face with Stephen before filming started she felt uncomfortable, and would never make the same mistake again.

I got cast without the director having met me. Which was a first, and probably an error on their part, she said. The first thing he said to me was, God, youre really short. But in a Hollywood accent. (C) Cover Media