http://www.gamasutra.com/view/feature/169159/the_origins_of_night_trap_an_.php Has anybody taken a look to this yet? Mind you, this documents what happened while it was still a NEMO project, but still, I guess I should put it here since the game ended up on the Sega CD instead (as its original platform).
Kind of related, not entirely, but not worth making a new topic http://en.wikipedia.org/wiki/Game_Over_%28film%29 There is a 2003 straight-to-DVD film with 35 minutes of footage taken from Digital Pictures games, including Maximum Surge which was never released. They sure liked to hang on to this garbage.
There's also a YouTube documentary involving Night Trap in the comments: http://www.youtube.com/watch?v=jc-TdbpU-4k