The single most interesting thing - and therefore the biggest question - to come from Robert Downey, Jr.'s inclusion in Captain America 3 (and the inevitable battle that will ensue between Steve Rogers and Tony Stark) is which of the other characters will side with which of the pair? Inevitably - assuming he has reformed - the Winter Soldier will side with Steve Rogers along with Natasha Romanoff and Sam Wilson, while Bruce Banner and James "Rhodey" Rhodes will side with Tony Stark, given their past relationships. But what about Hawkeye? What about Thor? What about Ant-Man (who will have made his presence felt in the Marvel Cinematic Universe by then)? Of course, if this movie is just the start of the Civil War storyline, we may also see Stephen Strange, T'Challa and others joining the fight later on - and whose side will Nick Fury and the Agents of S.H.I.E.L.D. be on? It's all very exciting indeed. So there you have it - ten questions about Robert Downey, Jr.'s involvement in Captain America 3. Did you enjoy this article? Do you agree that these questions needs answering? What other questions do you have about Robert Downey, Jr.'s involvement in this movie? Let us know your thoughts in the comments section below. And please feel free to follow me on Twitter!