Hi!
Hello Diegão! I saw this movie too, it's very good. I think that it shows us a sub-world we never thought that could exist. And a contradiction too: a thief who robs another thief; "ladrão que rouba ladrão tem cem anos de perdão" like we say in portuguese. It means that doing something wrong is not very bad, because another one have already done it too. It's a good movie.
Bye.