Interesting fact:

Michael Crichton, the writer of the original film, was inspired to write ‘Westworld’ following a visit to Disneyland. He was mightily impressed by the animatronic characters he saw in the Pirates of the Caribbean ride, and the 1973 film was the result. This is alluded to in ‘Jurassic Park,’ when Jeff Goldblum’s character says: “Yeah John, but if the Pirates of the Caribbean breaks down, the pirates don't eat the tourists.”