Spielberg and his crew completed filming on Jurassic Park on November 30, 1992—12 days ahead of schedule—but he had to quickly shift gears and concentrate on shooting and completing his next film, Schindler’s List, which would go into production in March 1993. Because of the tight shooting schedule on that film and the extensive post-production needed for Jurassic Park, he handed over some post-production responsibilities to friend and frequent collaborator, George Lucas, who owned ILM. Lucas was given a “Special Thanks” credit in the final film.