This paper analyzes the challenges and achievements in the creation of digital visual effects in the movie Tron (1982). The film was a pioneer in the extensive use of digital imagery directly integrated into its footage, which required groundbreaking collaboration among several specialized companies and a significant budget (a working method that complex visual effects-heavy films routinely employ today). The text explores the evolution of technology and methods used in the production of that pioneering film, stemming from one of the film studios that had long been engaged in research and development, Disney, throughout its history. It also delves into the logistical and technical challenges faced by the visual effects teams. The significance of this film in the history of visual effects in cinema is emphasized, as well as its influence on subsequent generations of filmmakers and digital artists.