My costume was being the only one over 30!  The Boston Common theatre had scheduled three 12:01 showings, but they ended up opening several  more screens to accomodate all the last-minute folks.  And they were all full.
No spoilers here, I know.  
Just to say, Heath was mesmerizing.  After a few moments, I stopped seeing Heath at all.  It was pure Joker.  
I'll post more on the spoilers thread, just in case.  
I'm exhausted. 
