Movies News Terrance Howard to join Robert Downey Jr. in 'Iron Man' movie cast 10/11/2006 Actor Terrence Howard is slated to join Robert Downey Jr. in the upcoming Jon Favreau-directed film "Iron Man." Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Robert Downey Jr. Terrence Howard Jon Favreau Iron Man