Watch the Pre-CGI Animation of the Hulk vs. Hulkbuster Fight Scene From 'Avengers: Age of Ultron'

The superhero film Avengers: Age of Ultron is a true Hollywood blockbuster, complete with fast-paced action, complex animation and effects, and of course modern CGI. A video has been released featuring the preliminary animatic for the epic Hulk and Hulkbuster battle scene where Iron Man attempts to stop the raging Hulk who is under one of the Scarlet Witch’s mind control tricks. Drafted by artist Federico D’Allesandro, the video is the fifth mockup of the fight scene and is a mix of hand-drawn drawings with rough computer animation and sound effects. Can you spot the slight changes between this version and the final production?