@ around 15 minutes when Paul & Connie are talking in the dinner a camera operator can be seen reflected in the mirror behind Connie. The camera operator is visible on the left side of the mirror before slowly moving to the right out of shot.
During the last scene in the couple's cottage where Samuel (Vondie Curtis Hall) is winding up the reel-to-reel tape, you can see a vertical cord next to the curtains in the background. It's not a drawstring for the curtains, but is a cable for the lights.
In the last image for the official domestic (US) theatrical release of the trailer for the film, the final shot of Paul (John Magaro) and Samuel (Vondie Curtis Hall) looking out at the water widens out to an extremely wide aspect ratio. Far on the right, looking very much like a tree branch is a boom pole. In the DVD commentary, the filmmakers explain that due to a fortuitous technical error with the Panasonic Varicam, they accidentally were capturing a much wider aspect ratio than they could see in the monitor or through the camera's viewfinder. Once they realized this, they took advantage of the extra imagery in several ways. This final shot of the trailer is an homage to that extra aspect ratio which is never fully revealed in the film itself. And since the boom pole looks so similar to the surrounding branches, the filmmakers kept it in.