Great short film about how ILM’s groundbreaking visual effects came to be used in Jurassic Park.

When Spielberg originally conceived the movie, he was going to use stop-motion dinosaurs. ILM was tasked with providing motion blur to make them look more realistic. But in their spare time, a few engineers made a fully digital T. Rex skeleton and when the producers saw it, they flipped out and scrapped the stop-motion entirely. Fun story.