Arnold Schwarzenegger has revealed that he will be back in action for Terminator 5. The 65-year-old actor, who missed out on a role in the fourth film in 2009 because he was still governor of California, admitted that people are working on the movie’s script. “People are working on a script,” the Daily Star quoted him as saying. “It could happen within a year. “I am absolutely up for it,” he added.