“Scream if you want to go faster,” says the man, with a crooked grin. But on a drizzle-filled Thursday of the opening week, there are yet no girls to waltz, no ducks to hook; the walking dead are having a lie down, and Spidey’s senses are decidedly un-tingling. The show must go on, but if no-one shows there’ll be no show. Each frame is a delicious glimpse behind the scenes to reveal the backstage waiting and anticipation of the fair…before the punters arrive.