Once Upon a Time in Mexico (2003) runs 1 h 42 min, is rated R in the US and averages 6.3 from 2,514 TMDB members. A corrupt CIA agent Sands hires hitman El Mariachi to assassinate a Mexican general hired by a drug kingpin attempting a coup d'état of the President of Mexico.
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Streaming availability by JustWatch. In the US, as of 2026-11-05: Paramount Plus Premium (subscription), Paramount Plus Essential (subscription), Paramount+ Amazon Channel (subscription), Paramount+ Roku Premium Channel (subscription).
Once Upon a Time in Mexico on TMDB · This product uses the TMDB API but is not endorsed or certified by TMDB.

Lights Down is a free tool: tell it your streaming services and how long you have, and it ranks what you can stream tonight, with a this-or-that, a roll, a bracket and a wheel. Movie data from TMDB; streaming availability by JustWatch. Page updated 2026-11-05. This product uses the TMDB API but is not endorsed or certified by TMDB. Lights Down is a Somebody Decide program. How the data works · Legal & privacy · Tonight's lists