Don Cheadle to join cast of Avengers: Age of Ultron Dec. 13 (UPI) --Actor Don Cheadle confirmed in an interview that he would be reprising his role of War Machine for the 2015 release of Avengers: Age of Ultron. Cheadle admitted to taking part in the film while being interviewed over his Golden Globe nomination for his role in House of Lies. Age of Ultron is set to be released on May 1, 2015. Slashfilm Hypable