Amores Perros (2000)

Oh my. This one is heartbreaking. The basic idea is that a young guy needs money to save his brother's wife from her abusive marriage so he starts to dog fight his brother's rottweiler. Meanwhile, in a parallel plot, a young model is severely injured in a car accident which ultimately takes her leg just after her lover has left his wife for her. And, in the third plot, a semi-homeless hitman witnesses much of this and tries to reconnect with his daughter while struggling with his most recent hit assignment. The heartbreaking parts for me have nothing to do with the people but the dogs, of course. The fight scenes are horrifying. I'll never watch the film again. But the truly terrifying part is that the rottweiler, after being saved by the semi-homeless man and nursed back to health after a fight ended with a gun shot, does what he was taught to do and kills the semi-homeless man's pack of stray dogs. It's really really terrible. The poor dogs are dead but you can't be angry at the rottweiler because that's what the poor dog was taught to do. He was simply being loyal to the man who saved him. Ugh. It makes my heart hurt. The film is good. It's well done. It's important. But I can't recommend it because I can never watch it again.