George at the screening of TOMORROWLAND on Sunday?

https://twitter.com/princessamaniy/status/559496130048700417
OK, the screening seems to be true because a couple days ago some people, especially the reliable TOMORROWLAND Times, 
have posted about this:
https://twitter.com/filmnerdjamie/status/558497740171132928
https://twitter.com/TheTomorrowTime/status/558029147084443650

Where was the screening?

Dont know suppose it to be held some theater in LA, as I know at least that Times blogger lives in LA.
But Brad Bird is attending an event today in San Francisco as he lives there. 
https://twitter.com/NPRAskMeAnother/status/559511139231342592
Normally the director would be at the screening or did they just let George host that?

Depending on the event screenings could have some of the actors and crew (director / writer ) etc. at the event.