While pretty racy by American standards, this film addresses a number of issues from coming of age, to the culture and politics of Mexico, to dealing with grief and the inner workings of the human psyche.
His dad threw him out of the house.
Quality of translation isn't something we talk about much, because if you don't speak both languages, you never realize what you're missing.
As far as sexual coming of age films go they litterally don't get better than this.