That's absolutely true of these 10 movie scenes, each of which used CGI in a wildly unexpected way, allowing it to slot effortlessly into the practical footage and ensure that most viewers never ...

Ever since the dawn of the earliest CGI movies, the medium has opened up countless thrilling worlds for movie-going audiences ...

Narrator: Back before the widespread use of CGI, effects artists and filmmakers ... but it wasn't used in a movie until 1973's "Westworld." So how did filmmakers in the early 1900s do this?