Amazon offers Back to the Future: 25th Anniversary Trilogy [Blu-ray/Digital] for $19.99 – 75% off. Great Scott! It seems an Amazon bigwig stood on his toilet to hang a clock, slipped, hit his head, and started pricing products as if it were 1985. The Back to the Future 25th Anniversary Trilogy is the definitive box set for fans. This joyous comedic ride features the most iconic time machine (a DeLorean luxury car). The bonus material is extensive and provides fans with all archived material. Director: Robert Zemeckis – Starring: Michael J. Fox, Christopher Lloyd.