Mary Marr "Polly" Platt (January 29, 1939 – July 27, 2011) was an American film producer, production designer and screenwriter. She was the first female art director accepted into Hollywood's Art Director's Guild. In addition to her credited work, she was known as mentor (for which she was honored with Women in Film Crystal Award) as well as an uncredited collaborator and networker. In the case of the latter, she is credited with contributing to the success of ex-husband and director Peter Bogdanovich's early films; mentoring then, first-time director and writer Cameron Crowe, and discovering actors including Cybill Shepherd, Tatum O'Neal, Owen Wilson, Luke Wilson and director Wes Anderson. Platt also suggested that director James L. Brooks meet artist and illustrator Matt Groening. Their