Schwarzenegger is back in action

Muscleman-turned movie star-turned California governor Arnold Schwarzenegger is returning to the movies.He's on the New Mexico set of The Last Stand, playing the starring role as a small town border sheriff.The actor posted a message on his Twitter account late Monday saying, "Fantastic first day on the set of The Last Stand. Big thanks to the crew - keep up the great work."The Lionsgate studio says Schwarzenegger plays a former Los Angeles police officer who ends up sheriff of a small border town after a botched operation.The movie is a modern day Western about convicts making their way to the Mexico border through New Mexico after escaping from a Las Vegas prison.The Last Stand is being directed by Kim Jee-Woon.