Not appropriate for kids, but seems appropriate for this thread:
I watched The Running Man last night (got a free rental on Vudu for it).
It takes place in the year 2017.
The biggest thing they got wrong was the length of actual show time between commercial breaks.
I'd mention the relevancy of the basic themes of the movie, but that would land us in PnR.
Aside from the dancer's outfits, I think it has held up well.
Lots of great sound samples in that movie: