Jonathan Gems (born 1952, London) is a British playwright and screenwriter mostly known for his work on Mars Attacks!, directed by Tim Burton. He also wrote the film's novelization.The son of the playwright Pam Gems, Gems wrote a number of plays for theatres on the London fringe before gradually turning to screenwriting. As well as Mars Attacks!, Gems did uncredited rewrite work on Batman. Gems has written a number of unproduced scripts for Burton, including a Beetlejuice sequel titled Beetlejuice Goes Hawaiian, an updating of Edgar Allan Poe's "The Fall of the House of Usher" set in Burbank, California, The Hawkline Monster, a cowboy/monster movie that was to star Clint Eastwood and Jack Nicholson and Go Baby Go, a beach movie in the style of Russ Meyer.
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