It’s not the line for the tickets that is so long. You buy your ticket and THEN go stand in line. My kids dragged me to one of these openings once, not a midnight opening but a regular time opening. We had purchased our tickets on-line.
Oh, and there are alarms on the emergency exits and there were guards stationed in front of each emergency door.
we buy our tickets online with fandango, and print them ourselves. then you don’t wait in line, you just hand to the guy who tells you which theater. now, a midnight showing on opening day? there might still be a line but theoretically you have you ticket you go on in and sit through all the blather before the previews.