The John Hammond featured in Steven Spielberg's blockbuster Jurassic Park is a completely different character than in the original novel, and these changes helped set up the whole Jurassic Park franchise. Jurassic Park was first published in 1990, becoming an instant best-seller and the most famous novel of author Michael Crichton. Spielberg would adapt the book for the big screen in 1993, with Crichton co-writing the script alongside David Koepp.
Jurassic Park, while following the overall structure of Crichton's original novel, still makes some notable changes to it. The film is much less violent and has more of an adventurous feel compared to the considerably darker tone of the novel. The film also greatly modifies the man behind the fictional Jurassic Park on Isla Nublar, John Hammond, famously played by Richard Attenborough.
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The monumental success of Jurassic Park turned it into the world's preeminent dinosaur-centric franchise, in both movies and every other entertainment medium. Though Hammond would only be seen briefly in the 1997 sequel The Lost World: Jurassic Park, he's begun one of the most crucial pillars of every movie in the series. As it turns out, the significant changes made to him as a character in Jurassic Park are what facilitated that.
In the Jurassic Park novel, John Hammond is the epitome of a stereotypical greedy billionaire type of villain. Hammond treats the Jurassic Park staff with little affection and has no concern for the loss of human life when the dinosaurs escape captivity. His singular goal is to build Jurassic Park into the biggest, most lucrative corporation in the world. In the novel, Hammond's greed and lack of foresight
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