Anyone who has read adventure novels, especially from certain time periods, has picked up a few questionable pieces of "scientifically proven" information. The James Bond novels alone left me believing a couple of different myths (though not the one about homosexuals being unable to whistle).
Recently I posted about a well-known science myth started by a James Bond novel that a sumo wrestler was trained to draw his testicles entirely back into his body, something that most schools of sumo deny doing. A more convincing myth is the one set out in Goldfinger. The eponymous villain, in the novels, has a mistress who he has entirely painted gold, except for a strip down her back that allows her skin to "breathe." He eventually murders her by painting the strip down her back as well, leaving her to suffocate. It's picked up in the movie because it makes for a fantastic visual image. Even the producers believed the science behind this, leaving a patch of the actress's skin unpainted in order to keep her from dying on camera.