Biography:

Alan Trustman (born December 16, 1930) is an American lawyer, screenwriter, pari-mutuel operator and currency trader. In his movie career, he is best known for writing the 1968 film The Thomas Crown Affair, Bullitt, and They Call Me Mister Tibbs! Description above from the Wikipedia article Alan Trustman, licensed under CC-BY-SA, full list of contributors on Wikipedia.