The exit machine is a slightly reworked, old Moviola film editing machine with a couple of raw speakers and a YES/NO button added.
The coffee mug on Wynn's desk says "THINK OUTSIDE THE BOX". It can be seen when he is drawing the picture of Rains.
In the monitor room at the beginning of the film, there is a blurred shot of a controller for an Atari 2600 as the CD of Ryjkin's demise is being collected.