it's a frame from the explosion when the witch lights the match :]
It is indeed. Well done! That sequence is very interesting in freeze-frame mode, I must say. I've often wondered how that kind of thing is animated, and it was instructive to look at it.
Actually, I've been freeze-framing quite a lot, and I'm making a list of interesting stuff that I've spotted... and there are quite a few things. One of my favourites is in the war machine, when a piece of wood with a crescent moon cut out of it flies past, closely followed by a roll of toilet paper, still on its spindle
