Kate: Hello, McFly!? You can't go back there. The amazing Kreskins will read your mind and find out where Magnus is.
Kate first alludes to the Back To The Future movies, in which Biff Tannen would knock on George McFly's head, saying "Hello? Hello? Anybody home? Huh? Think, McFly." Next, referring to the telepathic triad, she alludes to The Amazing Kreskin - a "mentalist" who appeared regularly on North American television in the 1960's and '70's. However, although Kreskin made "predictions" based on observations, he never claimed to have paranormal or clairvoyant powers.