When I was there it was very long
Long! Go earlier in the afternoon and sign in and come back....lol
The fastest way is to stop by the store and use the tablet by the line to request a date and time a few days from now. Being so close to Christmas they might not be doing appointments anymore. Somone recently said the line without an appointment was about 3 hours. However you will be given a time to get on line. Once you register you go about your business until it's close to your time. You do not need to stand in line for 3 hrs.
We went when the hours first started & we waited an hour. We had dinner in the restaurant, & by the time we were done, we were up next!
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