From Wikipedia, the free encyclopedia J. Robert Bren (July 23, 1903 – October 1, 1981) was a Mexican-American screenwriter and producer who was active from the mid-1930s through the mid-1950s. He wrote either the story or screenplay for thirty feature films, as well as producing at least two of those films. Born Jose Roberto Bustamante Gutierrez on July 23, 1903 in Guanajuato, Mexico, he entered the film industry, working on... see more