Saw Hancock this afternoon.
'twas OK. I had somewhat low expectations from what i had heard. Also took a little while to get started. The movie is only about an hour and a half and after the first hour, it seemed like not much had happened. They stuffed a lot of movie into the last 30mins or so.
Also, Charlize Theron is hot. I've always been kind of 'on the fence' with here, but I enjoyed looking at her in this movie

It is true though that you if you've seen the previews, you've pretty much seen the best parts of the movie, except for a somewhat unexpected twist that leads into the last 30mins I mentioned above.