Sharon Stone to co-star Kristen Stewart

Sharon Stone, 56, will work together with the Twilights' actress Kristen Stewart and Jesse Eisenberg in the new movie American Ultra.

Stone will have the role of a government agent and Kristen Stewart will play the girlfriend of Eisenberg, who will be a small-town stoner who doesn't even know that he is a highly trained killer.

The film, wrote by Max Landis, will be directed by Nima Nourizadeh and will also star Topher Grace, John Leguizamo and Bill Pullman.