Mark Johnson is an American film and television producer. He won the Academy Award for Best Picture for producing the 1988 film Rain Man.

Rain Man is a 1988 American road comedy-drama film directed by Barry Levinson and written by Barry Morrow and Ronald Bass. It tells the story of abrasive, selfish, young wheeler-dealer Charlie Babbitt, who discovers that his estranged father has died and bequeathed virtually all of his multimillion-dollar estate to his other son, Raymond, an autistic savant of whose existence Charlie was unaware. Charlie is left with only his father's beloved vintage car and rosebushes. Valeria Golino also stars as Charlie's girlfriend, Susanna. Morrow created the character of Raymond after meeting Kim Peek, a real-life savant; his characterization was based on both Peek and Bill Sackter, a good friend of Morrow who was the subject of Bill, an earlier film that Morrow wrote.