I've got a bootleg of the Bladerunner "Denver/Dallas" workprint, recorded by camcorder at a screening of it in 1990. Despite being a camcorder bootleg, it's decent quality and definitely watchable. There was just one moment during the film where some idiot stood up in front of the screen to walk out of the theater.
I've considered posting it to myspleen but wanted to wait and see if someone else posted it first.