Robert Downey Jr. shared a new photo from the set of Avengers: Doomsday and gave a nod to Hawkeye's Jeremy Renner.

Doomsday. On Tuesday, the actor posted a BTS picture from the set, flexing his biceps, drawing attention from fans.

Robert Downey Jr. just released an image of himself on Instagram seemingly to help promote a friend's endeavor as well as to ...

Downey Jr., who has portrayed the popular Marvel character Iron Man since the superhero's first film was released in 2008, ...