Final answer:
Toy Story, released in 1995, was the first film created exclusively by computer, marking the introduction of CGI into narrative filmmaking, paving the way for advancements in special effects and 3-D films such as Avatar.
Step-by-step explanation:
The first film created exclusively by computer was Toy Story, which debuted in 1995. This groundbreaking film was produced entirely on computers, marking a significant milestone in movie history, introducing the world to Computer Generated Imagery (CGI) in the narrative film. Prior to digital advancements in filmmaking, movies relied on models and props, and filming had to be perfectly executed to achieve the desired background. The creation of CGI opened up new possibilities, eliminating many of the constraints and inefficiencies of traditional filmmaking. Take for example the strides made in recent 3-D films like James Cameron's Avatar, which showcased groundbreaking special effects and a level of realism that vastly improved the viewing experience. The use of CGI has dramatically expanded, allowing for a new era of film creativity and efficiency.