David Koepp (/kɛp/; born June 9, 1963) is an American screenwriter and director. He is the ninth most successful screenwriter of all time in terms of U.S. box office receipts, with a total gross of over $2.3 billion. Koepp has achieved both critical and commercial success in a wide variety of genres: thriller, science fiction, comedy, action, drama, crime, superhero, horror, adventure, and fantasy. Some of the best-known films he has written include the sci-fi adventure films Jurassic Park (199 ...