I suspect the Prost/Senna thing is quite a good way of testing someone's personality. You either go for the cold, calculating but grey genius of Prost or the devil-may-care, exhuberant brilliance of Senna.
Both arrogant as hell but in different ways. It was one of those great sporting match ups alongside Ali/Frazier and McEnroe/Borg.

Back to films. Scariest moment ever? The steaming footprints in the wood in Night of The Demon. Still gives me the willies now!