Picture the room going dark, just your people, and your choice on the big screen for a milestone. Renting a whole auditorium feels like a heavy lift, but nailing the timeline keeps the stress low.
Book the theater well in advance to lock down a weekday matinee slot. Weekday matinees cost about half the price of weekends, making the whole thing much easier to pull off.
Remember that the intro window is a strict deadline, not free money. If you still carry a balance when those 18 months are up, deferred interest or standard rates will kick in on what is left.