If you are anything like me, you want to try to document everything you see at an event like this. However, there are some times when you simply are not allowed to take photos or video.
There are often specific events or exhibits where the organizers are asking for no flash photos, no video, or no photos entirely.
Respect those rules! The organizers didn't make that rule just to be mean. They did it for a reason. Do not try to be the sneaky one and take a few shots anyway (especially if forget to turn off your flash). It's disrespectful and rude. Plus, if you are caught, you could be asked to leave.
One event at Star Wars Celebration that I expect to see these types of restrictions is the George Lucas "Main Event". When he came to Celebration III in 2005 they had "No Video" rules. I'd be shocked if they don't have that rule again this time.