15 Movies With the Worst CGI, Ranked
The Lawnmower Man, Sharknado, and Cats are all among the worst movies with shockingly, hauntingly awful computer generated imagery and effects.

Since the infancy of cinema, since the times of filmmakers like Georges Méliès, visual effects have gradually increased in importance. They allow directors to let their imaginations run wild and turn their crazy ideas into visible things for audiences to see. There have been many advancements that have revolutionized visual effects, but there's one in particular that's become pretty much synonymous with the field: Computer-Generated Imagery, or CGI.