The worst thing to happen to film: CGI.
There is one potential upside to CGI, dead actors can come back and star in new films and living, insufferable actors can go away in poverty and silence.
I have often told people that the magic of movies was killed off by computers. The ingenuity it took to pull off effects is extinct. You will never hear someone say, as they walk out if a theater: “Geez, how did they DO that?!”