There is a wonderful active drive-in in a little hamlet in southern Colorado that has a motel built against the back fence. You can watch the movie out of your motel room,(complete with stereo sound) or the locals can drive-in. In a similar event to Charley's, we went to see a submarine movie and it started raining...it was either Hunt for Red October or Crimson Tide. It was too cool.
As a wee little puppy I remember the beginnings of a lot of Clint Eastwood spaghetti westerns, but darned if I can remember the end of any of them. Me and sis would go in our jammers and conk out before much shootin' ever commenced.