Douglas Trumbull Pre-Show Directed by: Les Mayfield and David deVos Written by: Peyton Reed Music Composed by: Alan Silvestri Executive Produced, Created and Written by: Peter Alexander Produced by: Sherry McKenna, Craig Barr, Philip Hettema and Terry Winnick Production Executives: Jay Stein and Barry Upson Based on characters created by: Robert Zemeckis and Bob Gale Creative Consultant: Steven Spielberg Designed by: Universal Creative and Berkshire Ridefilm Distributed by: Universal Studios Additional notes Although Doc's wife, Clara Clayton, did not appear in the ride, a picture of her with him could be seen in his office in the pre-show video as well as in the pre-flight briefing room. Michael J. Fox was asked to reprise his role as Marty McFly in the ride as Doc's personal assistant and test volunteer, but he turned it down. He could still be seen in the queue video, within archive footage of the films. The iconic clock tower had apparently been repaired between the events of Back to the Future Part II and those of the ride, as it could briefly be seen displaying the correct time rather than being stopped at 10:04. Infamously, a misplaced styrofoam cup can be briefly spotted between two buildings in the 2015 section of the ride. One of the early versions of the Ride footage, uploaded on YouTube, shows Biff exiting the vehicle, thanking Doc for saving his life and goading riders as usual. The difference in this footage shows Biff screaming as he is showered with manure from the ceiling ducts, to which Biff responds, "Manure!! I HATE MANURE!!!" Universal Studios Hollywood 1993 Promo Raffle At the inauguration of Back to the Future The Ride in 1993, Universal Studios Hollywood staged a promo raffle with a DeLorean today known as VIN #10902 up for grabs. Two contests were organized, but in both cases the winners preferred the prize money and not the car prize, which was subsequently kept in the warehouses of Universal Studios Hollywood. Memorabilia In keeping with the theme of the ride, many prop-replicas from the films were on display as guests lined up. Notable items included the Hoverboards from the second and third movies and letters from Doc Brown to Marty McFly. The locomotive from the third film and one of the modified DeLoreans were on display outside the ride; the DeLorean outside the Florida ride was removed on September 3, 2007, later to be