I’d heard of A.I.; I still dream of Napoleon; but Lunatic at Large is a new one on me:

The manuscript remained lost until after Mr. Kubrick’s death, in 1999, when his son-in-law, Philip Hobbs, working with an archivist, turned it up, along with a couple of other scripts, and set about trying to make it into a movie.

Stanley Kubrick – Jim Thompson – Edward R. Pressman – Movies – New York Times