Alien Chestbuster
If you've seen Alien, then you probably know that the most memorable, and one of the most terrifying, scenes is when the infant xenomorph burst out of John Hurt's chest. Evidently, the entire cast got unbelievably freaked out by the occurrence. Even Veronica Cartwright, who was no stranger to acting in horror films, passed out from the imagery.
An Alien Should Be Worth More
Do you remember when the strangely stiff creature jumped out of John Hurt's chest and sprinted for the door? That model was actually just a plaster, plastic, and epoxy doll that Ridley Scott made himself. The figure in question sold for $43,000 in 2004, and it was bought by a British pop musician named Chris de Burgh.