I can see it easily happening. People were not "tuned in" back then as we are now. People used the newspapers to see what was playing and what times where available. Trailers weren't available 24/7 for instant viewing. You saw previews before the movie you were about to watch. The TV advertising wasn't so prevalent for movies. My parents would go to the movies and see whatever was playing on the one screen the theater had when they were kids, not just go to see a specific movie at the cineplex with 30 different screens. Things were very different back then.