Industrial Light & Magic uploaded this video showing how their team recreated NYC level by level in great detail from 2000 spheres of images from 250,000 images. All of this done for The Avengers film released last year.
You already saw how they made the single-take hero shot in The Avengers, now take a look at how ILM made just about everything else. Impressive work and definitely realistic looking.
This honest trailer for The Avengers touches upon one thing I really wondered while watching the film: How in the world were all the superheroes talking to each other during the epic city battle scene with no apparent communication device linking them together?