Gale wrote most of the first draft by himself as Zemeckis was busy making "Who Framed Roger Rabbit". At first, the film was to take place in 1967, but Zemeckis later stated that the time paradoxes of it provided a good opportunity to go back to 1955 and see the first film's events in a different light. While most of the original cast agreed to return, a major stumbling block arose when negotiating Crispin Glover's fee for reprising the role of George McFly. When it became clear that he would not be returning, the role was rewritten so that George is dead when the action takes place in the alternative version of 1985.