This weekend I saw Watchmen, Duplicity, and Monsters vs Aliens(in 3D!)
Watchmen was... it was alright I guess. Zach Snyder still is not a good director, most of his personal touches on the story were both obvious and retarded. My initial reaction was pretty positive, but I'm pretty sure that's because of my love of the book. Another friend of mine put it good saying that the movie was really effective in making you want to read the book again.
Duplicity didn't really engage me until the last act or so, but even then it was difficult for me to care about it. Julia Roberts' performance was also terrible. I wanted to like it a lot, since Tony Gilroy is good, and his last movie was so great. But it just never really caught my interest. Giamatti and Wilkinson were pretty criminally underused.
Monsters and Aliens 3D was really fun. I love 3D technology, the movie basically made me feel 5 years old. There were a handful of really lame gags that didn't work, which is basically the dreamworks signature at this point.