Two words are indispensable to any action movie, or any movie with action scenes for that matter - green screen.
Without a green screen, Salman Khan would be unable to run along the roof of a moving train, having first trampolined his way onto it using the roof of a moving car, as he did in Kick; Ranveer Singh would be unable to saunter through an airport lounge, a basketball court, a shoe shop and a bar all at once, as he did in Ladies vs Ricky Bahl; and Shah Rukh Khan would be unable to toe-juggle a football, as he did in RA.One.
It's all make believe and possible because of technical wizardry. Even, dare we say it, Salman Khan's famous sculpted torso in one scene of Kick.
Here's footage that explains the magic of the movies, and how filmy heroes get to defy the laws of physics and gravity.
Watch:
