Ruth C. Sullivan family member with developmental disabilities. She retired from the Autism Services Center on November 1, 2007 at the age of 83. Sullivan assisted in the production of the 1988 movie "Rain Man" by serving as a consultant on autistic behavior, and Dustin Hoffman worked with Sullivan and her son Joseph, who has autism, when practicing for his role. Hoffman thanked her and Joseph in his Oscar speech. Sullivan has the last credit in the movie, and the extended DVD version features an interview with Joe. (Joe Sullivan was not the only inspiration for Hoffman's role; the role was originally written
Dustin Hoffman that of Nichols when he previously acted with Elaine May in the comedy team of Nichols and May. "Just close your eyes and you'll hear a Mike Nichols—Elaine May routine in any number of scenes." Buck Henry also noticed that "Dustin picked up all these Nichols habits, which he used in the character. Those little noises he makes are straight from Mike," he says. After completing "The Graduate," Hoffman turned down most of the film roles offered to him, preferring to go back to New York and continue performing in live theater. He returned to Broadway to appear in the