A black comedy called "El Infierno" or "Hell" is the story of a well-meaning middle-aged deported migrant's transformation into a drug thug, capable of insane levels of brutality.
"El Infierno" has been seen by more than 1.5 million people so far despite an adult-only certificate and its 145-minute running time.
Last week the film performed best of all in a cinema in Culiacán, notorious drug capital of the state of Sinaloa and home to the country's most famous drug thug, Joaquín "El Chapo" Guzmán.
Writer and Director Luis Estrada says: "A lot of people seem to think they are watching a documentary. That's why I'm particularly keen to find out how it's viewed in the rest of the world where there isn't so much noise from the reality."
Estrada also wrote and directed the brilliant 1999 satire "La Ley de Herodes."