From Wikipedia the free encyclopedia 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 films novelization The son of the playwright Pam Gems Jonathan 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 Poes The Fall of the House of Usher set in Burbank California The Hawkline Monster a cowboymonster movie that was to star Clint Eastwood and Jack Nicholson and Go Baby Go a beach movie in the style of Russ Meyer Description above from the Wikipedia article Jonathan Gems licensed under CCBYSA full list of contributors on Wikipedia