There has been a growing trend in the film industry in the use of three dimensional computer generated images (3D CGI) for special effects. With the popularity of this relatively new medium comes the need for new terminology. This exploration developed a general system of classification for 3D CGI effects for use in film. This system was based on a study of various writings about the significant films, which employ 3D CGI effects. A three-group system of classification system was developed. The three-group system was composed of the Elements Group, Level of Reality Group, and the Kind Group. These terms were developed to aid in the day-to-day production of 3D CGI special effects in the future.