He said he'd be back: Arnold Schwarzenegger won't star in his own big-screen project until 'The Last Stand' arrives in theaters sometime in 2013, but the former Governator is back on the set of 'The Expendables 2' and apparently loving every second. "Back in action for 'The Expendables 2!'" Schwarzenegger wrote on Twitter. "I'm having a fantastic time on set with Bruce and Sly in Bulgaria." That's Bruce Willis and Sylvester Stallone to you mere mortals. Check out the photo above.