Avengers SFX at Grantland

“Behind the Creation of New York City for ‘The Avengers’” is Grantland Channel’s fourth in a series of “Inside ILM.”

Industrial Light & Magic had to reach deep into its bag of tricks to create the movie’s battles above the streets of New York– for one reason, because you can’t get a permit to fly a helicopter 50 feet above the Park Avenue viaduct…