I saw Wallace and Grommit: Curse of the Were-Rabbit and Charlie and the Chocolate Factory with my girlfriend a couple of months ago.. plus we are eagerly anticipating Harry Potter in a month. It depends on the kids movie -would we see "Spy Kids 3"? Hell no. Would we watch something adapted from a book from our childhood, a book we like, or an animator we have followed for ten years? Hell yeah.
With the last Potter being a kids movie... tell that to the middle aged couple that came in reeking like their own personal dutch oven... I think half the cinema looked at them and giggled at how stoned they were/smelt (which would have been great for their paranoia

)
I'll be there with bells on.. Hell, might see Narnia too.