Next time I visit DCA I'll have to stop in and check it out.(Ha Ha, I think I'm the only one who likes DCA better).
Question: do you just walk through in a continuous line, or is there some spacing between your party and the next bunch of yahoos trailing you? Also, are there cast members present maintaining order, or is it possible for the less "parentally-control" children to just tear through yelling, screaming, and doing other, less-acceptable things?
They should do something like this at WDW though they have the beautiful mosaics there that many pass over. If you want to see something really cool and similar to this, check out DLP's telling of Sleeping Beauty. Oh, and there is a dragon in the basement!