Jen Underdahl, Visual Effects Producer for Marvel Entertainment, provides WIRED with an in-depth look at the most impressive visual effects featured in Avengers: Endgame and Infinity War. Jen explains how they crafted "Smart Hulk," made Chris Evans look considerably older, and how they were able to digitally create the entirety of the Avengers' time suits.

Avengers: Endgame is available on Digital and Blu-ray now