] His cane and coat are thrown on the bed, but Joe cautions him about tossing his hat there - another instance of superstition in the film:Joe: Ah, ah, ah, don""t put the hat on the bed.However, when he mistakenly picked up a Red Phone, he voice immediately chided him: "No, the White Phone!" When another announcement repeated the original instruction to pick up the White Phone, the Captain angrily shouted back: "I""ve got it!" The call was from the Mayo Clinic (in Minneapolis) about a heart transplant patient on his upcoming flight.The original screenplay by Peter Ruric, a semi-autobiographical work, was only loosely "suggested by the immortal Edgar Allan Poe classic" (according to the film""s credits).They discussed a small green rock fragment, allegedly a piece from the ""Kryptonian World Engine"" used for terraforming.They watched as Caesar convened a Council Meeting of apes in an open-air amphitheatre (the different groups sat segregated from each other), and reported upon his recent reconnaissance expedition to the Forbidden City with Virgil and MacDonald as aides.