Neither Spielberg, nor screenwriter David Koepp, nor Michael Crichton, on whose novel the movie is based, have shown any interest in challenging the moralistic assumption at the heart of almost every creature  That good intentions, spunkiness and, above all, good looks are the safeguards against rampaging monsters.
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Spielberg has shown no interest in challenging a moralistic assumption.
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Spielberg has voiced his concern for morals and assumptions in his movies.