I’m a manager for a Regal Cinemas theatre, so I promise you this is accurate info, at least for Regal Entertainment Group theatres.
If you plan to go and you want to dress up, please check with your theatre if you’re unsure about your costume.
Masks will not be allowed, and neither will prop weapons. I know those are probably obvious to people, but I’d hate for someone to get dressed up and then get turned away.
Another big thing that I didn’t even think about–face paint counts as a mask, at least for Regal theatres. If you show up in Darth Maul facepaint we are not allowed to let you in. This is a corporate, safety decision. No exceptions. So please, be prepared and treat your theatre gently, it’s going to be very, very busy.
Please signal boost this, I would hate to have someone do their face up as a character and have to wash it off or miss their movie.