Yes you do. Just walk in the front door and put as se your ticket using the gift card. And if the showing is reserved seating you select your seats there.
Let's clear this up. Regal uses reserved seating for the theaters that have recliner seats. So, that is the only time that you will have to reserve them. You can do so online or at the window.
The seats are usually assigned when you arrive. Few people reserve before showing up. You will be asked to reserve once arriving.
Just reserve your seat when you get there. Seats are assigned.
Thanks! Your answer is awaiting moderation.