Avengers: Infinity War has just hit Blu-ray and DVD, which means it’s time to sit down and spend multiple hours watching your favorite Marvel movie heroes get beaten into bloody pulps by Thanos all over again. They’ve done so in a rather beautiful manner thanks to the work of Weta VFX—and we sat down with Visual Effects Supervisor Matt Aitken to learn more. We’ve also got an exclusive look at the team’s fantastic before-and-after work.