Actually, they do -- and that's how movie theatres operated for a lot of years until the multiplex cinema came on scene. When I was a kid, there was usually a f

Actually, they do -- and that's how movie theatres operated for a lot of years until the multiplex cinema came on scene. When I was a kid, there was usually a feature, a "B" movie, a serial and one or more cartoons. You paid an entry fee and stayed until you'd had your fill, and most people stayed for more than just the feature. You could wander in just about whenever you wanted, and if you came in halfway through a film, you could watch the first half later if it seemed worthwhile. Then somebody figured out that you could make a lot more money by clearing the theatre between shows and segmenting the package -- chasing the "B" movie first into smaller shoebox viewing rooms, then into oblivion before the direct-to-video market emerged. And no, I don't go back to the early talkies or anything -- the market worked that way well into the '70s.