Erlang is a programming language developed in 1986 to improve telephone switching networks. For the non-programmer it's horribly dry stuff, but for those in the know it has some really interesting features. In order to show off some of those features, the creators at Ericsson made and starred in a short video entitled Erlang the Movie.
I cut out everything but the telephone calls, just to see what it'd be like. I like the weirdness of them calling each other endlessly just to say hello. It reminded David of this video by William S. Burroughs.