Harlan County U.S.A. (1976)

In 1990 the film was selected for preservation in the United States National
Film Registry by the Library of Congress as being "culturally, historically,
or aesthetically significant"

Cut and Run (1985)

Cut and Run is one of Deodato's strangest films due to the bizarre
mix of genres. The film balances horror, action and adventure
elements with gritty cocaine smuggling and hostage situation subplots.
There is even an Apocalypse Now inspired crazy Colonel living with
natives in the jungle.

Large amounts of graphic violence which includes numerous decapitations
and impalements, a disembowelment, and a guy being completely torn in half;
frequent scenes of rape and female nudity and a whole tribe of bloodthirsty
natives led by bald genre favourite Michael Berryman.
(IMDB)

La Bestia Mata a Sangre Fria aka The Cold-Blooded Beast (1971)

aka
Asylum Erotica
Slaughter Hotel
The Beast Kills in Cold Blood
The Cold-Blooded Beast
La Bestia Mata a Sangre Fria
La Bestia Uccide a Sangue Freddo

In a psychiatric clinic for rich women, dies murdered,
one after another, a nurse and two patients, while an
arrow hit another woman. The guilty is a masked man.
The police decide to set up a trap, but the line of
murdering isn't still over.

Hanyo aka The Housemaid (2010)

A man's affair with his family's
housemaid leads to a dark consequences. 

7 Kwang Gu aka Sector 7 (2011 Korea)

Something awaits 8,000 feet under
the sea off the southern tip of
Jeju Island. 

The Clay Pigeon (1949)

Jim Fletcher, waking up from a coma, finds he is to be given a court
martial for treason and charged with informing on fellow inmates in a
Japanese prison camp during WWII. Escaping from the hospital he tries
to clear himself by enlisting the aid of Martha Gregory, widow of a
service buddy he was accused of informing on. Helped also by Ted Niles,
a surviving fellow prisoner, he gets closer to finding the answers he
needs, and becomes ensnared in a grandiose scheme involving his Japanese
ex-prison guard, $10,000,000 of US currency forged by the Japanese and
a burgeoning crime network poised to wreak havoc throughout southern California. 

Dracula's Daughter (1936)

Hungarian countess Marya Zaleska seeks the aid of a
noted psychiatrist, in hopes of freeing herself of a
mysterious evil influence. 

Ilsa - Queen Of The Nazi Love Camp (1994)

Andy Curtis, Michael Green, and Denise Clarke star in this
recorded performance of a satirical Canadian musical inspired
by the case of Jim Keegstra, a school administrator who came
under fire for the anti-Semitic and Holocaust-denying philosophies
which begin to crop up in his lessons. ~ Mark Deming, Rovi

Horror Safari aka Invaders of the Lost Gold (1982)

A group of Japanese WWII soldiers transporting a gold shipment are
captured and fight against a savage cannibal tribe. Years later,
an expedition heads back into the jungle to locate the lost gold.

Eine Armee Gretchen aka She Devils of the SS (1973 Switzerland)

aka
The Cutthroats
SS Cutthroats
Fräuleins in Uniforms
Fraulein Without a Uniform

In the last days of WW2, women are volunteering from all over Germany to
serve in the front lines by having sex with the brave Nazi soldiers. But
when they start having sex with each other, things get complicated.
Especially with the increasing danger from the revengeful Soviet army!

Swiss made (for a German audience) exploitation war film that is more
interesting for the nonjudgmental attitude toward the Nazis and its lack
of any real violence ... then anything then happens on screen. (IMDB)

The Invaders (1967)