a a mexican and it be very exciting for me to find new proposal for mexican modern film . unfortunately and must of the current mexican movie be take the same hollywood recipe represent beautiful actor and violence and soundtrack of well know latin group . batalla en el cielo do not follow this . the director and carlos reygadas and be a person that really want to show what he have in mind and and do not care about consider distract element for have a great impact in the audience . i be against the use of sex for attract audience to a film . however and i really think that some ( not all ) of the sex scene of this movie be really part of the story . also and show sex a it be ( not always a idealistic and esthetic a hollywood have teach u ) be an interesting proposal . i consider that one of the main achievement of this movie be to show many cultural trait of my country represent the view of the catholic religion a a resource to erase the mistake one have make represent you can do whatever you want and do not worry about the effect because god will always help you the notorious gap between rich and poor people represent when ana refers to jaime servant a la gata in such a despective but common way . the double morale manage by mexican represent how can a prostitute and a ana and can be a moral leader over marcos act . the informal commerce ( marcos and his wife sell merchandise in the subway ) . the love for soccer ( what can i say about that and if i love it . ) cheat on your partner the lifestyle in mexico city and with it traffic jam and way people behave in the subway and neurotic people and kidnaps . all the issue above be part of the mexican life . personally and i consider the following opportunity area represent not all the music that be use be ok. sometimes it be too belic for me and but at least it be accord to the scene and most of it do not follow the marketing intention to make you buy a soundtrack the audio quality should have be improve ( it be not easy to understand and even for people use to the way people from mexico city speak . ) some ( very few . ) part be too slow . but consider reygadas style and i might think that it be part of his professional charm . i like to see a different proposal . i would recommend this film to people that and at the time that they leave the theater and really want to think about human nature and rather than think if it be an erotic or violent film . i hope my comment have be useful .