I got there at 8:40 am on Sat (there was only the evening show) and was 7th in line. A lot of people came soon after but a bunch also left when it got too cold and windy, so by the time the box office opened, I think there were about 15 people in line (even tho more had come and lined up briefly). I think everyone got seats (I was told the day before first preview that they prob had about 30 rush seats so I'm guessing they all sold out then).
I noticed a cancellation line when I went into the theatre and standing room people so it's selling well.
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