"We've almost got some of their telecommunications cracked; the front end even runs on a laptop!" The Mac that sunk a thousand ships could have been merely clunky product placement, not a bafflingly stupid tech-on-film moment.
Wasn't the in-movie explanation for that that all modern tech was secretly based on reverse engineered alien tech?
Probably one of the most famous examples, but the robots in The Matrix originally kept humans around as wetware CPUs using their spare brainpower. Studio execs forced the Wachowskis to change it to them using humans as batteries, even though that makes no sense. Agent Smith possessing someone in the real world in the sequels would have made a ton more sense with the original explanation.