Amores Perros. Spanish language, Mexican film.
It was the inspiration for Crash and is much better, imo.
Three stories which link together.
1. Boy is in love with his brother's wife & enters his dog in fights to make enough money for them to run away together.
2. Model is left crippled after a car crash, ruining her career. Her relationship, with a man who left his wife for her, begins to deterioate.
3. Former revolutionary, now a hitman, is struggling to come to terms with abandoning his wife and, now grown up, daughter to fight for what he believed in.