Computer Generated Imagery (CGI) is one of many tools that talented artists and filmmakers use to help better tell their stories. CGI is not created by the push of some magic button. It is the culmination of careful thought, design, experimentation and the pure creativity of artists. The impossible becomes reality and when done well, evokes wonder and awe as it transports the audience deeper into the story. Here are 18 of my favorite CGI moments in film history.