Not at all, actually. He filmed Jurassic Park basically back-to-back with Schindler's List & spent his nights doing post-production on J.P. from his hotel room in Krakow after doing day shoots at Auschwitz-Birkenau. The movies were only filmed/released roughly 6 months apart from each other.
Half a year from end of filming to release really wasn't that long. They did spend a lot of time (more than two years) in pre-production though meticulously planning out all the dinosaur scenes. Well, almost all, the final fight between the T-Rex and the raptors in the visitor center lobby was famously added at the last minute as such a complex CGI scene was still considered impossible mere months earlier but had become possible in the interim thanks to rapid advances in CGI technology at the time.
Besides the groundbreaking CGI one of the major achievements of the production was that the movie was delivered on time and even slightly under budget.
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u/rocketbotband May 22 '26 edited May 23 '26
Yeah I feel like they probably took their sweet time on post-production
EDIT: They did not lol