This was at the metro arena in Newcastle, the arse-end of the queue to get in. The queue itself took about ten minutes to walk from end to end, and was moving extremely slowly. Eventually, a staff member came and told us it was full and extremely unlikely we'd get in, so we gave up.
Fair enough, we didn't pre-book tickets, but apparently people who did pre-book didn't get in either. There's a great deal of justified nerd rage on the forums.