Trivia: At the beginning, Robert Downey Jr, as Chaplin, sits down to take off his make-up. On the table is a picture of Geraldine Chaplin who is Chaplin's daughter, and later she plays his mother.
Trivia: The young nun in the hospital who informs Hoffa and Bobby that Flynn is dying is played by Jack Nicholson's daughter.
Trivia: Although Edie McClurg plays Stephen Shellen's mother, she is only six years older than Shellen in real life.