12 Interesting Age Of Ultron Theories Based On The Trailer

5. Nick Fury Is Absolutely Vital To The Plot

Nick Fury is only in the trailer for a split second, as he appears out of the shadows in what looks like a derelict building - presumably to assist the Avengers in their fight against Ultron. Despite the mere brief cameo, we expect Fury's role to be huge - even if his appearance in the movie only amounts to a few seconds. In the Age of Ultron comic arc - which we know is very different to the how the movie is going to be - he is key to the victory. He allows the Avengers to seek shelter in one of his secret bases and provides them with the technology required to go back in time to prevent Ultron's creation. Don't be surprised to see something similar occur here.