The preferred seating vouchers come with packages (WDTC and Costco that I know of.) they let you arrive closer to 30 minutes before the show and enter a separate queue, and get a good seat. I have not done regular seating, but I understand that you should arrive about 45 minutes to an hour before the show to get into the regular queue to go in. It is a great show and shouldn't be missed. The parks calendar has been all over the map as far as putting it on for certain days and then taking it off. It seems that I read somewhere, that disney wasn't planning on putting it on the online calendar at all this fall and would instead only print it on the times guides you get the morning of--so check that each day you are there, you may be surpised what days it is showing!