I'll probably get flamed for this, but I would say not to waste your time on this. We tried to get my two boys to the store in time to do this when they were 3 and 4. We didn't run, but we really rushed. We completely missed the experience of enjoying the awe and wonder of seeing the castle for the first time in the morning. We made it to the store just in time to watch two little girls wake Tinkerbell, and it was a HUGE disappointment. Like the other poster said, a small box opens and you see some sparkling lights light up across the wall. It is all over with quickly and the boys both said, "Is that it?". You can actually look in the dresser drawer at any time in the store during the day and see her.
My advice is that unless you are a real Tink fanatic, skip this and enjoy Main Street on your way in.
JMO.
A