The Avengers - ILM and Weta Digital's VFX
Read about the collaboration between legendary VFX houses ILM and Weta Digital for the superhero film The Avengers.
The Avengers - Visiting the Set
Quint from Ain't it Cool News has spent two days on the set of The Avengers, and has an editorial about it.
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.