One of the captured chimps was a bright-eyed female, dubbed ""Bright Eyes"" (Terry Notary).A transition shot of her eyes now identified her as chimp number 9, an animal test subject for intelligence.Either she""s telling the ruth or I""ve never seen anyone like her." Nick is convinced she is lying and is fooling the machine although the evidence seems o contradict him: "Because I know people who""ve done it.Of all the candidates for the novitiate, I would say Maria is the least likely."From the viewpoint of Sister Sophia (Marni Nixon in her first appearance on the screen, although she was the ghost singing voice for Natalie Wood inWest Side Story (1961)and for Audrey Hepburn inMy Fair Lady (1964)), ".Why we handled a much tougher and ornery crowd than I see present.Why when we started shootin"", they ran out of town so fast, the breeze from their coat-tails set off a scythe of a windmill.As the group made a getaway to return to eastern Pennsylvania, they came across a fiery road accident blocking the rural highway.