How about one of the most obvoius utopian films of all, Logan's Run?
Always been a favorite of mine, I first saw it when I was a little peeper,
and didn't understand a bloody word of what was going on, but I thought it
looked cool...  I ran into it again late one night on Showtime...
  Anyway, 'sa great film... :)
  Josh ranting in Madison, WI