After Joseph Mazzello was turned down for the role of Jack Banning in Steven Spielberg's Hook (1991) for being too young, Spielberg told Mazzello that he was still impressed with his audition and would try to cast him in a future project. Mazzello was then cast as Tim in this movie. As Mazzello recalls, "Steven had me screen-test with Robin Williams and Dustin Hoffman for Hook. I was just too young for the role. And because of that, Steven came up to me and said, 'Don't worry about it, Joey. I'm going to get you in a movie this summer.' Not only a nice promise to get, but to have it be one of the biggest box-office smashes of all time? That's a pretty good trade." Mazzello's casting led Spielberg to reverse the ages of the children, as he decided that casting a girl younger than Mazzello would be too young to be placed in danger. Lex was therefore made the older child, and the computer expert as well. In Crichton's original novel, Tim is older, and is both the dinosaur and computer enthusiast.
In this film, Steven Spielberg directs the man who beat him to the Best Director Oscar in 1983 (Richard Attenborough, whose film Gandhi (1982) also beat Spielberg's E.T. the Extra-Terrestrial (1982) as Best Picture).
Phil Tippett became quite depressed when he learned that none of the stop-motion creatures he had been developing would be used in the film. However, shortly after that decision had been made, ILM animators discovered they did actually have a use for him. While none of his stop-motion models would be seen in the film, his techniques were determined to be quite useful in animating the computer-generated dinosaurs, especially given how much research he had put into animal movement. Rather than creating the dinosaur motion using key-frame animation, it was decided to build a stop-motion armature for each computer generated dinosaur and manipulate it as they would for a stop-motion film. These armatures were specially built with motion-sensors, and linked up to the animated dinosaurs being created on the computer. Thus, the motion of the stop-motion armature was directly translated into the computer-generated version that appears in the final film. |