I got to the special showing an 1 1/2 hours early only to find that they had already started seating people in 2 theaters and each one was already about 75% full. Luckily, I still got the seat I wanted, but had I been ten minutes later I wouldn't have. Some girls behind me said they'd already waited in line for two hours before they let them in. So my plan to go an hour early would have been a disaster.
Anyway, I won't spoil the film by dropping any details here. I'll just say it's creative and excellent so go see it.