Among the list of the males potentially allowed to survive by Mantis a promotional photo of Robert Redford from Brubaker, in which the words "Wakefield Pris(on)" can be read, is shown.
When Brubaker requests sunglasses, one suggestion is for the mirrored kind where you can't see the wearer's eyes, a reference to The Man With No Eyes who wore those sunglasses in this earlier Stuart Rosenberg film.
