Relax, just kidding! I have no idea what happens, I'm not a big Potter fan and don't know how this one unfolds.
Rick Prelinger says,
I know the net is clogged with Potter pix right now, but it was wonderful in London last night — a queue of perhaps 1000-1500 fans with at least as many spectators, all shooting off digicams with flash. Media hype lives on, but so does fantasy!
Link to a wonderful photo set.