ट्रिविया

The earthquake of September 19th 2017, occurred during the last day of shoot.

In the bar scene, the gray haired gentleman sitting at a booth reading a newspaper is Rafael Bernal, the son of the novel's author (of the same name).

A new version from El complot mongol (1978) starring Pedro Armendáriz Jr.

Actress Barbara Mori used black contact lenses for her rol as Martha. She has green eyes.

The original novel writer's son, also named Rafael Bernal, appears at the bar scene reading a newspaper.