Don’t believe me? Read this quote:
When making the original, in order to convince the studio to take a chance on a first-time director, Lisberger shot a test reel, financed by the studio, involving the deadly Frisbee battle. In a case of historical synchronicity, sources said one of the things Kosinski will be doing is working on a sequence involving the movie’s Light Cycles to work out his vision for the movie. Sources also said visual effects personnel, for many of whom “Tron” was an inspiration to enter the business, already are jockeying for pole position to work on the sequence.
Source via MajorSpoilers.