" This was the point in the Fire Swamp sequence where Buttercup’s dress briefly catches on fire before the flame is extinguished by Westley. It’s merely a line in the stage directions and consumes only a few seconds of film, but before we could shoot the scene, several steps had to be taken. First, a fire marshal had to be brought to the set. He would then meet with the stunt coordinator, Peter Diamond, Nick Allder, our FX supervisor, and his special effects crew. This was followed by what is known as a general “safety meeting” with the rest of the crew. Anytime there are firearms, fire, or even a dangerous or semidangerous stunt involved, there is always a safety meeting of this kind. The whole crew gathers around, and usually the first AD explains what the meeting is about. He then introduces everyone to the person in charge of special effects/stunts/firearms, etc., and that person walks everyone through the sequence, detailing both process and all potential safety concerns. "

― Cary Elwes , As You Wish: Inconceivable Tales from the Making of The Princess Bride