The Avengers: Age of Ultron trailer leaked last week and it was absolutely fantastic. It has undoubtedly been the most talked about entertainment story of the past few days. The action looks epic, James Spader sounds incredible as the titular villain (who also looks pretty damn amazing) and it stands to be the biggest film of next year already, if the trailer's reception is anything to go by. Some of what we see in the trailer is pretty clear cut - the Avengers are having a hard time with Ultron, there's global pandemonium, Hulk has to fight the Hulkbuster armour and the Avengers have two new members in Quicksilver and the Scarlet Witch. However, some of it is less clear - what are the circumstances in which Hulk is fighting the Hulkbuster armour? What is Captain America looking for in the mountains? Why are there shots from the past? What are Quicksilver and the Scarlet Witch talking to Ultron about? For the parts of the trailer that are unclear or ambiguous, we have to make our own assumptions and come up with our own conclusions about the context of the scenes in question. In this article, we're going to do exactly that. Here are twelve interesting Age of Ultron theories based on the trailer (contains potential spoilers)...
