[mikeash]

I see what you mean, sorry to have been unclear. I think you see what I intended now.

You probably can't find it on a car without getting into SF, but an excessively sophisticated autopilot on an airplane could probably fit into an otherwise non-SF movie. Like the example of Airplane! but played seriously. I just assumed that's the sort of thing people were talking about with the idea coming from entertainment, since "obviously" technology in an SF movie is going to be unrealistic.

There certainly are some similar misconceptions generated by movies not usually considered to fall into the category of SF. For example, I'd wager a lot of people think spy satellites really can read a license plate from orbit, or that silenced guns just make a soft "pew" sound.