Tetsuo is around one hour long, in black and white, in Japanese (hardly any dialogue though) and made on a very small budget. It tells a bizarre story about a metal fetishist who inserts a metal rod into his leg only to find maggots in there too. He runs into the street, but is knocked down by a businessman. As a result, the businessman starts to change into something strange. It starts with a little bit of metal poking out of face, but soon gets worse.
The Evil Dead, Gozdzilla, Cronenberg, art films, all get stirred in, and the fast pace of the film is thrilling as it rushes you along. If this was a song, it'd be something post-punk or industrial, it's not for mainstream fans, but it's not boring art either.
Personally, I rate it up there with Lynch's Eraserhead, or Aronovsky's Pi, both black and white debut films that mix genre with out and out oddness. If you are open minded enough to like those, check this out. If you prefer American blockbusters - well, bye!!