Cost: $7

The Psychotronic Film Society unearths another “so-bad-it’s-good” exploitation movie that’s never been released anywhere in the world on DVD.

“Final Score” is an Indonesian-made low-budget action flick starring the third-most famous American actor whose last name is Mitchum: Christopher Mitchum, the youngest son of famed screen star Robert Mitchum (“The Night of the Hunter,” “Cape Fear”), and younger brother of actor James Mitchum.

Christopher Mitchum turns 72 this week, and the PFS salutes this philanthropist and conservative politician (he’s failed in four runs at both the California State Assembly and the U.S. House of Representatives) for his valiant efforts to attain the heights of his father’s fame and fortune in the acting realm.

“Final Score” was made in 1988 and finds Mitchum in one of his all-time silliest and least-believable roles: as a decorated Vietnam veteran whose family is brutally attacked. This, of course, forces him to vow revenge against the gang responsible for the heinous crime, and attempt to settle a “final score.” Directed by the infamous hack filmmaker Arizal, who’s also responsible for the unbelievably dumb action picture “The Stabilizer,” this film is a feast of bland acting, clumsy staging and gratuitous violence. Come prepared to laugh. Showtime is 8 p.m. with $7 admission and specials on organic wine and craft beer during the film.