Ok, look, there are 3 layers. 3 layers inside the whole movie. First layer: the reality. She was taken to Lennox House because she killed her sister. 5 days later, the doctor comes to make the lobotomy. In these 5 days, she planned her escape with her friends, but wouldn’t be the movie so exciting if it was told normally, would it? Then comes the second layer. The brothel. All the characters are the same, in different ways in the brothel. Her dance and what happens while she dances are part of the third layer. Is a really deep place into her mind that she reaches while she dances. The last 2 layers are into her mind only. The second is the mirror of the first. Don’t compare both movies, they are pretty much different. I used “layers” because Zack Snyder used the same thought in this interview. (the article and the subtitles are in Portuguese) In Sucker Punch, we see the reality, the “mirror dream” and the unreal. That’s it.