 Crichton noted that because the book was "fairly long" his script had about 10 to 20 percent of the novel's content; scenes were dropped for budgetary and practical reasons, and the violence was toned down.Malia Scotch Marmo began a script rewrite in October 1991 over a five-month period, merging Ian Malcolm with Alan Grant.Spielberg wanted another writer to rework the script, so Universal president Casey Silver recommended David Koepp, co-writer of "Death Becomes Her".