Showing my age here. A family member of mine used to run a local theater. The booth had multiple projectors, because films came on multiple reels (and once yo

Showing my age here. A family member of mine used to run a local theater. The booth had multiple projectors, because films came on multiple reels (and once you knew what to look for, you could not unsee the reel switch indicators). So we've had the technology for a long time to pause a feature before the credits and roll another featureette and then switch back.