Tron, released in 1982, was a ground-breaking science fiction film that was also a box office disappointment for the then floundering Disney. From the movie to the Arcade game, Tron to all the merch and the action figures by Tomy all the way through to today and Tron's appearance in Kingdom Hearts. Tron's story is complicated, it's legacy less so. The mark it made on Hollywood, and movie-making, has been felt for decades.