Rodilla negra (1975)

In this short film, the title of which translates as "Black Knee", a team of football players (played by members of the Barrios Unidos Cali team) encounter a pair of skinnydipping hippies out in the fields and steal their transistor radio. This seems to trigger something in their most legendary player, Jonny Mosquera: a terrible syndrome that makes him literally fall to his knees. Like La hamaca, Agarrando pueblo, Carne de tu Carne and other films made by Mayolo, this film blends deeply unsettling imagery and lowkey genre filmmaking into an equally unsettling and exhilarating realism.

Unfortunately the movie Rodilla negra is not yet available on HBO Max.