Wow. You do know all the hidden gems from the 80s. I'm very impressed. What else do you have? I like the plot summary written by a fan on IMDB: "A lift begins displaying some erratic behavior, like trapping some party goers and nearly suffocating them, and decapitating a security guard. Felix, the technician from the lift company, can't find anything wrong with the circuitry. When he and a nosy reporter begin asking questions of the lift company's electronics partner (Rising Sun Electronics) his boss puts him on a leave of absence. A subsequent visit to a professor leads them to believe that some evil experiments are being conducted with MICROCHIPS."
Oh, I love cheesy old movies where they display electronic devices or refer to electronic themes. Another hidden gem is Dick Maas' "The Lift (1983)". The main character is a lift technician and he is shown fiddling with PCBs and elevator control racks. Here are some scenes where you can see some engineers in a lab room that has benches with scopes, and a professor projecting a chip mask on a screen:
Here's a great one you've probably never heard of. It's a "small film", one the excellent low-budget top-quality movies from HandMade Films, the studio started by George Harrison and Denis O'Brien.
Bellman and True (1987) is a heist film involving a clever bank robbery. The hero is a middle-aged engineer who is forced to use his electronic and mechanical genius to work around the bank's elaborate security. If you like Maker Faires and clever electronic hacks, you'll love this one.
Hmmm... So you list the remake of "The Fly" but forget to mention "Into the Night" (1985), also starred by Goldblum (this time along Michelle Pfeiffer and directed by John Landis) where he is an electronic engineer? There is even a scene where "Ed" - the character played by Goldblum - is sitting in a room with other engineers (Dan Aykroyd plays a colleague, and David Cronenberg cameos as the manager) where they are discussing the schematic of a circuit projected on the wall, integrated circuit electronic lingo included. That was a blast to watch when I was a kid and was just getting into electronics. A fun movie too, lots of good actors are featured.