Might be sold out on that date.
That is because the showtimes for that week have not be released to us from the movie studios. The week of Friday 8/24 - Thursday 8/30 will be released and placed up for sale by Tuesday 8/21.
It might be sold out. What app are you using? Try Fandango. You can test it with a different movie, just don't follow through with it.
Seen it before it was sold out at least with respect to the APP. Try a different time and i bet it will work
Maybe its one day too far out to be able to reserve seats.
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