A video by the Academy of Motion Pictures Arts and Sciences tells how the Jurassic Park CGI dinosaurs were created. Featuring interviews with the Industrial Light and Magic staff who worked on the movie, the clip reveals that two artists worked on a CGI T-Rex model in secret. Once done, they filmed a video test using the model and put it on a video screen when producer Kathleen Kennedy visited their offices one day. That test resulted in Kennedy, Spielberg, and the rest of the team deciding to use CGI for the motion scenes, given that it looked more realistic than the clunky old stop-motion effects they had been planning to use.