Well, there is LudoSport San Francisco, which is the first of our US Academies. I don't know if they went to the movie premiere for EP8, but I can tell that most of the Schools I know in Italy did.
They seem like a good bunch, I would check them out. Look for LudoSport San Francisco on Facebook or write at
sanfrancisco@ludosport.net if you are interested.
On the other hand, we do offer regular courses, so if you are just interested in meet-ups maybe a costuming group would be better for you. I don't know, you might want to try and check for yourself.
This photo below is a group of pupils of my School, and me, at the premiere of EP8 in Genoa, Italy: