At the midnight showing I was (in Mexico), these were the reactions.
-The audience laughed at the jokes
-Also there was an audible "AHHHH

" when [BLACKOUT]Lois received Clark's mail and found out what it was[/BLACKOUT]
-I think people were really into the movie (I could sense their concern in the dramatic scenes)
-Also I felt that during the 1 hour mark people were kind of tired with so much exposition
-There was some applause at the end, but it was kind of forced. It was more like people were in shock about what just had happened.
-A lot of people stayed waiting for an after credit scene (or maybe they were just shocked and discussing with their friends, I don't know)
-Outside the theater a lot of people were discussing the movie
-I went with 9 people, two of them, who love DC comics, loved the movie; my brother who is a batman fan said it was ok but too many things were happening; my cousin who is from the "general audience" loved the movie; another one who is fan of DC comics gave it a 6.5/10, he didn't like it that much; the other three said that it was good but not excellent.
-Also, after the movie I heard a friend discussing the movie with his mates, and they were really into the discussion. Today I asked him what he thought and said he didn't like the movie