Avengers: Age of Ultron - Casting the VFX Vendors
fxguide have created a very thorough article about the VFX vendors contributing to the massive Avengers: Age of Ultron.
The Amazing Spider-Man 2 - Featurettes
Here are two featurette videos for the upcoming The Amazing Spider-Man 2 fim.
Marvel - Fan Animation
BlackMeal has created a short animation meant as homage to the characters of the Marvel universe.