I have been wondering about this too. I don't want the 9:30 show because that is so late to eat and I would never be able to sleep that night after such a big meal. I originally booked the 5:00pm show, but then thought that since we have to get there 30 minutes early, I would have to leave the park (AK) that we would be at by 3:00ish or so to get there on time, plus it would be a hassle trying to get back to ASMu after the show is over. SO, I called and booked the 7:15 show instead. It gives me enough time after it is over to digest my food before I go to bed, I can stay in the parks a little longer before I have to head over to FW for the show, and I can take a bus from the show directly back to ASMu once the show is over. For me 7:15 is the show time that worked out best.