Spider-Man 3 - I had no idea it would or could be so bad. I left the theatre trying to convince myself it had some good moments. All I could come up with was the FX looked good (a given in this day and age).
Superman Returns - I liked the idea that it was a sequel of sorts to the Donner films. I was really excited to be seeing it in IMAX 3D (a first for the summer blockbuster). My future wife went with me and seemed really excited about it leaving the theater. I didn't have the heart to tell her how I really felt.