Plot: A rich guy and a poor guy engage in an elaborate pissing contest.
I haven't seen the remake of this from 2007 with Jude Law and, well, Michael Caine, but I can't imagine it's nearly as good as the original. This movie is just so well written, biting dark comedy at the fringes and some great irony, and the two leads--the only two performers in the movie, are stellar. It's a slowly-unfolding cat and mouse game that has you on the edge of your seat even if you already know how it's all going to wind up. I never made the connection, but this was written by Anthony Shaffer, the same guy who wrote the screenplay for The Wicker Man.