Thanks DavidB for your fast reply.
I'm planning on catching Christopher Lloyd. I Have tickets for the photo shot with him at 10:05am, I am planning to wait for the photo taken to be ready and then go to sign it. Do you think I can make it, or am i expecting too much?
As for the talks I'm planning to attend for the HP, Brent Spiner and Corey Feldman - Will I have to queue 3 times or there will be only 1 queue from where I can collect all 3 tickets?
Sorry but I'm a complete newbie at this