I always loved how we would get comments from the Ant-Nolanites how Christopher Nolan had nothing to do with Man of Steel.
Christopher Nolan brought Zack Snyder onboard the movie and helped David Goyer with the story.
Well, it turns out his involvement didn't end there.
The Man of Steel Blu-Ray has a behind-the-scenes featurette where we see director Zack Snyder with Christopher Nolan. And we also see Hans Zimmer. I guess we can gather that Nolan was somewhat involved in post-production.