Producer Steven Lisberger introduces the test trailer he and his fellow filmmakers created to sell the viability of a Tron sequel to the studio, some two-and-a-half decades after the debut of the original film. (The full test trailer is included and, in many ways, is more riveting than Legacy.) From there, the featurette kicks into high-EPK gear as the filmmakers quickly dissect the new story, touch on the science behind their vision, and offer their thoughts on the final film