X-Men Origins: Wolverine I saw this past weekend and I thought it was pretty good. I would see it again. Of course, I never read the original story, so all claims made are in the spirit of blissful ignorance.
In my summer lineup are the following:
Star Trek - Yes, I'm morbidly curious about this one.
Up - It looks at least mildly amusing. I'm game.
HPHBP - Gotta see them all!
9 - Looks quite excellent.
Terminator Salvation - Robots go crunch. Okay, so there's probably (hopefully) more plot than that, but I mean, really, what more do you need? (although I do draw the line at Transformers

)
Angels and Demons - Yep. We all need a little more Tom Hanks in our lives.
District 9 - I'm really not sure about this one yet, but I can see myself ending up watching it at some point. I'll give anything with aliens a shot. That's just how I roll.
There's a few more that I'm mildly interested in, but they fall under the "rental" list.