Speaking with a spokesperson at 20th Century Fox, MTV.com reveals a few details and well as contradictory statements regarding the Marvel film. The article confirms the appearances of Beast, Colossus, Iceman, Gambit, Jubilee, Kitty Pryde, and Siryn but then goes on to explain character history that may or may not appear in the film. For example, the article describes Beast as "blue-furred" but previous reports have indicated that he may be appearing in his original human form. The article also suggests that Colossus will be romantically linked to Shadowcat.
The article falsely credits Katie Stuart with appearing as Shadowcat in the original X-Men. Shadowcat, also known as Kitty Pryde, was actually played by Sumela Kay.