Talking to the Toronto Sun, Cowboys & Aliens stars Adam Beach and Olivia Wilde revealed that Wilde has a scene in which she is nude in the film.
"We just finished shooting Olivia Wilde naked in front of a bonfire in front of 500 Apache warriors," Beach said. "That was beautiful. You won't get to see what I saw, but you'll get a glimpse."
Asked about the nude scene, Wilde laughed. "Did Adam Beach talk to you? Adam Beach is the best. Last night, we did a scene where I'm naked in front of a group of couple hundred Apache. Pretty amazing, pretty interesting."
She added that the does "kick-ass in this. I love doing action movies ... This movie is so much fun for me."
Opening in theaters on July 29, 2011, the Jon Favreau-directed adaptation stars Daniel Craig, Harrison Ford, Wilde, Sam Rockwell, Noah Ringer, Paul Dano, Keith Carradine, Clancy Brown, Ana de la Reguera, Beach and Abigail Spencer.