Captain Marvel
When fans of Captain Marvel found out that Brie Larson's blonde locks were actually CGI, they were shaken to their core. One visual effects studio that worked on the movie was tasked with the sole responsibility of de-aging Samuel Jackson by 25 years. The final version of the film includes 385 VFX shots.
The Lord of the Rings
Eric Saindon, the visual effects supervisor in The Lord of the Rings, struggled to create Gollum, seeing as the motion-capture suit was not yet a common technology in 2001. "When we did Gollum, no one had really done a CG creature mixed with live-action that you were supposed to believe was just a creature in the scene," he said. Saindon's VFX team invented the technology that brought Gollum to life, and they won an Oscar for the monumental feat.