January Jones is to play a widow on a revenge mission in a new Western drama.
The 34-year-old actress - who plays Don Draper's bossy ex-wife Betty on hit TV show Mad Men - has signed up to star in Sweetwater alongside Ed Harris, reports Deadline.
The movie is set in New Mexico in the 1880s and follows a widow who is determined to exact her revenge after her husband is murdered by a sheep rancher.
Man On A Ledge star Harris, 61, will play the local sheriff who helps the woman on her crusade.
So far no other casting details have been announced.
Sweetwater will be directed by twin brothers Logan and Noah Miller, who were at the helm of 2008 drama Touching Home, which also starred Harris.