Yeah, there’s a bunch of these. I really like finding these sorts of “ur-“ moments, the first time a way of doing things really crystallizes into something other practitioners can see. The Matrix is another one - that movie is the transition point from 90s cinema to the 2000s, and it’s a little clunky from a 2000s viewpoint, but if you look at everything that came before it, it’s so clearly a turning point.