Dustin Hoffman Psychiatric Institute, affiliated with Columbia University, when he was 21. "It was a great experience for me," he said. "All my life I had wanted to get inside a prison or a mental hospital. . . . I wanted to get inside where behavior, human behavior, was so exposed. All the things the rest of us were feeling and stopping up were coming out of these people." He used that experience to help him develop the character of Raymond Babbitt, a high-functioning autistic savant, yet a person who critic David Denby described as "a strangely shuttered genius." Hoffman created certain
Dustin Hoffman in the mindset of someone under severe emotional distress, rather than simply acting, Hoffman did not sleep for days at a time and let his body become disheveled and unhealthy. Goldman describes his inspiration for the novel: "What if someone close to you was something totally different from what you thought? In the story, Hoffman thinks his brother (Roy Scheider) is a businessman where the reality is that the man is a spy, who has been involved with the Nazi, Szell." However, Hoffman remembers a serious disagreement he had with Goldman, who also wrote the screenplay, about how the story