Mouseburster

Tomorrowland 2055 was to be an updated version of Tomorrowland..... One of the main attractions that was to be added was Alien Encounter. Initially Disney owned the right to the alien from the movie Alien and planned to use that as the alien, but some Imagineers thought that it would be too scary. There was debate over it and the Imagineers got George Lucas to convince Michael Eisner that it was too scary for Disney.

- Chris Ware, Disney Unbuilt: A Pocket Guide to the Disney Imagineering Gra...