Plumbing Stanley Kubrick (2012)

Anyone interested in this would do well to watch Kubrick's Boxes. The whole documentary used to be on youtube, but it seems now there's only a trailer and some clips from it.

The article this HN submission links to focuses on the movie that was to become AI, which Kubrick started but never finished, and which was ultimately directed by Steven Spielberg.

Another project Kubrick started and never finished was a movie on the Holocaust, which he abandoned after hearing that Spielberg's Shindler's List was coming out. There were stills from that unfinished film in an exhibit on Kubrick at the Jewish Museum in San Francisco.