Arrival at kiosk or counter.
I guess it depends on the film, if its a big deal, you might want to purchase ahead of time so you can get them, but you can purchase upon arrival
Unless it's a hot movie, walk up ticket sales will be fine
For this one you don't have to reserve the seats. You just get there and take any seat you would like.
You can buy tickets when you arrive.
I always buy my ticket on the Regal app.
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