Den enfaldige mördaren (The Simple-Minded Murder, 1982) - considered one of Swedens best ever movies. Tells in flashback the story of a battle of wills between a cruel businessman and a feeble minded farmhand and the tragic consequences of this. Onne of Stellan Skarsgård´s first film roles.
La Grande bouffe (The Great Feast, 1973) - Classic French cult film about 4 middle aged men who rent a country chateau and decide to eat themselves ot death in an orgy of decadence
Iceman (1984) - Little known Sci Fi story about an artic science team qwho manage to find, thaw and bring to life a neaderthal man frozen in the ice, then have to deal with the moral and practical implications of their actions.
Pixote (1981) - Brazilian film telling the story of the street children living in Sao Paulo and their life of crime, drug and prostitution. Pre dates City of God by at least 20 years....
Mad Dog Morgan (1976) - Aussie film with Dennis hopper playing the title character, as he travels the outback fighting the law. Famous as Hopper was often pissed and bombed out of his skull during the entire production. And it shows!
Les valseuses (Getting it up, 1974) - Little knwn french film with Gerard Depardieu. Two whimsical thugs cheat, fight, steal and charm their way though france. Lots of violence and sex in 70´s french style.
Breaking Point (1975) - Swedish porno thriller about a bored office clerk experiencing lurid daydreams that eventually turn into paranoid delusions as he descend into madness
Six String Samurai. I'm sure someone here has heard of it, but it is TOO awesome to go unmentioned. Premise: Soviets won the cold war, and the only part of America that is left as America is Vegas and Elvis was the king of America. However, the King is dead, and a new king must rise.
Thriller: A Cruel Picture - same director as Breaking Point, which Icelandbob mentioned. About a girl who gets kidnapped and forced into drug addiction and prostitution. Naturally, she has to learn karate and such to survive. Be sure to get the unedited version, or you'll miss out on the gratuitous anal sex. There's a scene that supposedly involved the mutilation of an actual corpse. Also, Darryl Hannah's character in Kill Bill was inspired by the main character in Thriller.
The Boxer's Omen - can't be recommended highly enough. A Shaw Brothers film from the early eighties, it is one of the most mindbending things you could ever hope to see.
Imagine Jodorowsky directing a Buddhist black magic/kickboxing/gangster/revenge flick, and you begin to get a smoky outline of what this movie is like. Starts off fairly normally, then gets weird, then completely veers off-course into Bat Country, then it finally drives right off the cliff into the gaping maw of what-the-fuck.
You will immediately watch it a second time, then force everyone you know to watch it with you.
Wouldn't be confident in not classing it as mainstream, but I'm constantly met with blank stares upon any mention of Intacto. Revolves around the premise that luck can be actively gained, stolen, and accumulated over time. Features Max von Sydow as the 'luckiest man'.
Calvaire also springs to mind, although I wouldn't say it was urgent viewing by any means (a strong endorsement if ever there was one). Available to watch on Youtube, with preposterously miniscule subtitles.
@Jonathan H Recommendation of 'Sopyonje' was found to be very worthwhile. Good stuff.
Many more suggestions made here are committed to memory for future perusal.
@Doc Ocassi Having gone to a number of summer camps organised by Jewish youth groups, as well as spending ten years at a Jewish school, we were shown anything even vaguely to do with the Holocaust. So, yes, I have seen The Wave, and it was excellent.
Well, my website. Where the Long Tail Ends, is all about watching older films that aren't all that popular or possibly well known. Best film I've seen in the three years of writing reviews is easily The Saragossa Manuscript. That thing melted my brain. Word of warning, the film really needs to be watched in one sitting and since its over 3 hours long you should prepare yourself in advance. But trust me, it is totally worth it.
Besides the written reviews I co-host a podcast called High and Low (Brow) where we watch two films that fall under a general theme. The three films I would highly recommend people try to watch are Horror Express from Episode 5, The Mind of Mr Soames from Episode 4 and Long Weekend from Episode 3. Horror Express and Long Weekend are particularly outstanding for completely different reasons.
@icelandbob On the Silver Globe competes with Possession as my favorite Zulawski film. However, L'important c'est d'aimer has Klaus Kinski in it as a lunatic actor.
@Will Couper: Ah, right. It was considered one of those Video Nasties, right?
@Matt Gamble: I'm so glad you mentioned The Saragossa Manuscript (that movie's hilarious), because it reminded me of another film by Wojciech Has...