I know its not exactly an accurate measure of how a movie will go at Box office, but its interesting.
How full was your session for Predators?
I went to a 9.15pm session opening day in Melbourne Australia, and my session was totally full.
Not bad for any movie to have that, around my area. Was also interesting to see the mix of people.
Lots of couples ( I think it was the old deal, Girl says you go to Twilight with me, and guy says fine but you have to see Predators with me!) and a pretty even age spread it seemed too.