I saw the cartoon they did of it on a list of 'scariest films ever made'. I agree. They had a copy on display in the museeum, on the last page. *shudder*

They also had a TV screen showing what you should do in case of a nuclear strike. All I worked out from it was that if there was ever a nuclear strike and if we ever followed these instruction, the human race would be toast before you could say 'bugger'.