May end up combining this thread with the long-running MoS thread, but for now, just to parcel things out, and try to keep things relatively spoiler-free (or at least use spoiler text for this opening weekend).
So, given the complaints that "Superman Returns" didn't have a single punch thrown by Superman. Weil, they dispensed with that nitpick in a grand fashion, and often.
Lots of action in the film, but it was getting anime-ridiculous the longer the action scenes ran on.
The film has a lot of flashbacks, so the pacing sputters more in the first act, but towards the end, I found myself not liking the conflict resolution, and found the plotting/storyline to be both rushed and underdeveloped. After discussing the film with a friend afterwards, there were better ways to get to resolve the ending, as it is, it just felt like lazy writing to me. Plus, the characterizations are so reliant on people's walking-around knowledge of them, it's kind of a shame, actually, so don't expect much in characterizations of anyone but Clark/Kal, and even then you don't get much more than the mysterious good samaritan angle and high school punching bag scenes for his characterizations.
The product placement got a little much at times.
And for me, I didn't really think Superman had a genuine Superman moment in the film, just the knicks of a thousand knife wounds to encapsulate his struggle with General Zod and his forces.
I give it 2.75 stars, or a grade of B-. (Mostly A- for action, C- for story).