Computer-generated imagery (CGI) has been contributing to images in art, printed media, video games, television shows, commercials, and of course films for over twenty years now. The evolution of CGI led to the emergence of virtual cinematography during the 90s where sequences of the simulated camera are not constricted by the laws of physics. Now, this isnt necessarily a good or bad thing, it all depends on the film and the filmmaker. CGI has made possible some of the greatest film scenes of the last two decades, which cant be denied. Of course, we must also acknowledge the overuse of CGI in the film-making of today. If you look at your average summer blockbuster youll notice that if you were to take away its computer-generated imagery, large chunks of the film ceases to exist. Back in the old days if you wanted to put something in a film, you had to literally construct it and shoot it. Way before computer graphics technology had reached its present utmost stage of development, Hollywood filmmakers were using an assortment of tricks and strategies to make their films visually stunning. Here are some of the most memorable examples that revolutionized the film industry and make a mockery of your average CGI reliant movie of today.