4. Naked Lunch
20th Century Fox
The Drugs: Pyrethrum, "black meat", alcohol You know you're pretty desperate to get high when you start injecting your insecticide supply - if Dick's A Scanner Darkly delivered a skin-scratchingly uncomfortable analogy for amphetamine addiction, then William Burrough's Naked Lunch takes his own addiction to heroin and morphine and turns it into a monster-filled nightmare. Who else could bring this to the screen other than the master of body horror, David Cronenberg? Given that Burroughs intended the chapters of his novel to be read in any order the reader pleased, it's a testament to Cronenberg - who also wrote the screenplay - that Naked Lunch makes any sense at all. Peter Weller is perfectly cast as exterminator William Lee, who begins to visit a mysterious place known as the interzone while getting his hallucinogenic fixes from his supply of bug spray. In a movie in which a beetle typewriter attacks another believing it to be a secret agent, anticipating a logical narrative is the last thing you should do. But as much as it might (and should) baffle and confuse, Cronenberg has done an impressive job of filming such an unfilmable book.