So this part of the video may surprise people: We see Iron Man flying through Manhattan, but what many might assume to be just a digital character layered over a background plate of the city turns out to be an entirely animated sequence, right down to the traffic on the street below.
“For iron man flying around the city, we wanted him down around the valley of buildings and in New York you can’t take a helicopter that low. You can’t get to 500 feet above the tops of the buildings. That makes it pretty restrictive to get the plates.”
When in doubt, just build the city yourself.
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