Though she plays their aunt in this film, Irma P. Hall is four years younger than Robert Duvall and James Earl Jones.
Although the story-line has James Earl Jones' character being about six years older than Robert Duvall's character, Duvall is older than Jones by 12 days.
Despite the fact that this was filmed in Super 35, "Filmed in Panavision" is listed in the end credits.