Hollywood science

Really small organisms (viruses and rickettsia, for instance) aren’t motile (for reasons we will soon be able to guess), but we can explore the consequences of their hypothetical mobility by resorting to science fiction. In a classic example of Hollywood science, the cast of the film The Fantastic Voyage (1966) is placed in a submarine, reduced tremendously in size, injected into the blood stream of a human being, and asked to cruise to the brain to correct some malady.