From this list I've only seen:

El (1953) Luis Bunuel, Mexico

Force of Evil (1948) Abraham Polonsky, US

Grace of My Heart (1996) Allison Anders, US

The Insect Woman (1963) Imamura Shohei, Japan

Intimate Lighting (1965) Ivan Passer, Czechoslovakia

Leolo (1992) Jean-Claude Lauzon, Canada

Peter Ibbetson (1935) Henry Hathaway, US

The Ruling Class (1971) Peter Medak, UK

The Street with No Name (1948) William Keighley, US

Wanda (1970) Barbara Loden, US

White Dog (1981) Samuel Fuller, US

Good lord I have some work to do. Of the above Force of Evil and White Dog are probably the best, the latter much more deserving of being "discovered" because its never been released on video or DVD. Definitely have some work to do, and I'll go through this to see what's actually available here.