3. The Fly (1986)
Ive always wondered how many moviegoers actually threw up as a result of being exposed to the gruesome, stomach-churning special effects that take place in this film. Without a doubt David Cronenbergs remake of the 1958 horror classic boasts some of the most spectacular-and disgusting-makeup effects ever. Jeff Goldblums transformation from a mild-mannered scientist into a frightening human/fly hybrid is both fascinating and disturbing as Hell to watch thanks to Chris Walas demented imagination and expertly applied makeup effects. Goldblums poor character goes through some terrible changes (which include such things as his fingernails peeling off, his skin becoming crusty and just overall grotesque-looking, and some other nasty surprises) before reaching his final creature form, which looks awesome. Its little wonder that Walas won an Oscar for his work on the film as he truly deserved it.