There's a four minute preview out for The Amazing Spider-Man, set for release on July 3rd.
X-Men: Days of Future Past - Clips
Here are two more clips from the new X-Men: Days of Future Past film.
Captain America: The Winter Soldiers - Making of VFX
fxguide go behind the scenes on the major VFX sequences of Captain America: The Winter Soldiers.
The Avengers - 20 Minute Behind the Scenes
Here are 20 minutes of behind the scenes footage for The Avengers.