If you are specifically asking about the subtitles within the movie (especially for the Spanish-speaking Mexican segments):
If you are looking for a review of software used to manage subtitle traffic or creation: subtitle Traffic
: Benicio del Toro's performance as a Tijuana police officer is often cited as the "ace in the pack," though the entire ensemble, including Michael Douglas and Catherine Zeta-Jones, received strong reviews. If you are specifically asking about the subtitles