The Stan Winston School has been releasing behind-the-scenes featurettes focusing on the creating of the dinosaurs for Jurassic Park. The idea is to provide the regular folk a bit of insight into what went into creating these dinosaurs 20 years ago. Of course if they made Jurassic Park now, there would be no giant puppets made just a collection of 1′s and 0′s mashed together on a keyboard.
Mind you, these must work really well as recruiting videos for the school. You can check out more of the Stan Winston school making-of videos here.