Avengers: Age of Ultron - Behind the Scenes Videos
Marvel go behind the scenes on Avengers: Age of Ultron with these three featurettes.
Ant-Man - VFX Profile
fxguide have posted a lengthy article on the VFX from Marvel's latest film, Ant-Man.
Perception's VFX for Captain America: The Winter Solider
Here is a montage of Perception's work for the interface design in Nick Fury's car in Captain America: The Winter Soldier.