Is it ever made clear officially what the timeline of the Marvel Cinematic Universe is and where Agents of S.H.I.E.L.D falls on it?
After the Avengers, Tony Stark drives off with the Hulk, hinting at them working together. There were references in between the movie where Stark offers Bruce Banner a chance to work with him. Also ...
In upcoming Marvel film The Avengers: Age of Ultron, they are using Quicksilver and Scarlet Witch, characters which are Mutants (X-Men). So has Fox agreed for the characters to be used or Marvel and ...