Having done a bit of trawling around, this is apparently a list of the films shown during the "Red Triangle" season on Channel 4 back in 1986/87...
19/09/86 Themroc (1972, French), IMDB link...
http://www.imdb.com/title/tt0069369/
03/10/86 Pastoral Hide-and-See (1974, Japanese)
10/10/86 Throw Away Your Books; Let's Go Into the Streets (1971, Japanese), IMDB link...
http://www.imdb.com/title/tt0228853/
17/10/86 Identification of a Woman (1982, Italian/French), IMDB link...
http://www.imdb.com/title/tt0084116/
24/10/86 Pixote (1981, Brazilian), IMDB link...
http://www.imdb.com/title/tt0082912/
31/10/86 The Clinic (1982, Australian), IMDB link...
http://www.imdb.com/title/tt0083740/
14/11/86 Montenegro, or: Pigs and Pearls (1981, Swedish/British), IMDB link...
http://www.imdb.com/title/tt0082770/
28/11/86 No Mercy, No Future (1981, West German), IMDB link...
http://www.imdb.com/title/tt0082060/
10/01/87 Out of the Blue (1980, American), IMDB link...
http://www.imdb.com/title/tt0081291/
17/01/87 The Wall (1983, Turkish), IMDB link...
http://www.imdb.com/title/tt0090982/
Can't say I actually saw any of them, though! Hopefully the links will jog a few memories for those that can remember this season of films.
On the subject of late night non-UK films on Channel 4, my favorite was always the Polish film, The Sex Mission...here's the link to it on the IMDB...
http://www.imdb.com/title/tt0088083/
This movie is actually on DVD! I feel a purchase coming on...