The gorgeous star of Mad Men (with a name like a porn star), January Jones, has signed on to replace Alice Eve as Emma Frost in Matthew Vaughn's X-Men reboot, X-Men: First Class.

According to, Eve apparently couldn't fit the film into her current schedule and had to bounce from the project, making room for Jones, who will play Frost, one of the central characters in this new X-Men universe. Vaughn penned the script himself with Jane Goldman, who worked with him on the brilliant Kick Ass and lovely Stardust.

The film is to start shooting in London pronto, with a release planned for June of next year.