I don't think Man of Steel had bad dialogue throughout. There were only a couple lines I found really bad. My problem was that there seemed to be a lack of dialogue and whenever someone had more than a couple lines to say, it was exposition rather than a conversation. I wanted to have a bit more talking between characters about their views/feelings, instead of just one character explaining something while another listened or there just being a couple of lines and nothing more. But there were some great moments. The interrogation scene was too brief, but what we saw was great. And there were some great lines like "welcome to the planet," and "Krypton had its chance."