ILM have put together an awesome behind the scenes featurette for The Avengers.
Behind the Magic: The Visual Effects of "Star Trek Into Darkness"
Industrial Light & Magic have released three making of videos for the VFX they created for Star Trek: Into Darkness.
Transformers: Dark of the Moon - VFX Breakdowns Part 2
ILM have released even more VFX breakdowns for their stellar work on Transformers: Dark of the Moon.
Rango - CG Breakdowns
ILM have posted some really cool breakdowns of their first animated feature film, Rango.