'Cowboys & Aliens' which hits theatres on July 29, features Wilde's nude scene, which has been teased in the film's many trailers, at the climax.
Cowboys & Aliens is an American science fiction Western starring Daniel Craig, Harrison Ford, and Olivia Wilde.
The film is directed by Jon Favreau.
The film is based on the 2006 graphic novel of the same name created by Scott Mitchell Rosenberg.
Cowboys & Aliens is scheduled to be released in the United States and Canada on July 29, 2011.
The story is about 1873 Arizona where a loner named Jake Lonergan (Daniel Craig) awakens with no memory of his past.
Olivia Wilde plays the role of Ella Swenson, an elusive traveler.
The project began development in 1997 when Universal Pictures and DreamWorks bought film rights to a concept pitched by Rosenberg, the then president at Malibu Comics.
Favreau called Wilde's character the key to the film.
Daniel Craig plays Jake Lonergan and Harrison Ford plays Colonel Woodrow Dolarhyde.
The film takes a turn when the town Absolution faces an even greater threat when alien spaceships attack the town.