Watch: Shah Rukh Khan releases behind-the-scenes video of Zero, detailing film's extensive VFX

A week after its hit the screens, the makers of Shah Rukh Khan's high-concept film Zero have unveiled a behind-the-scenes video detailing the extensive VFX which went behind making SRK's Bauua Singh a vertically challenged man.

With 1600 VFX artistes worldwide, the video clip shows the various methods by which the optical illusion was achieved. Harry Hingorani, the VFX supervisor on the project, broke down the workings behind every scene, stating that every shot was filmed five times separately to create a singular sequence in the film. Further, the entire set flooring was created like a jigsaw puzzle, where the entire cast would stand on an elevated platform to render the difference in height between SRK and the others.

As a test run, the team released the promo clip of 'Tumko Humse Pyaar Aya' on 1 January 2018.

Aanand L Rai's Zero released on 21 December to mixed reviews. It stars Anushka Sharma as a scientist suffering from cerebral palsy, Katrina Kaif as a popular actress struggling with alcoholism and Mohammad Zeeshan Ayyub as Bauua's friend.

Watch the video here.