Idea has very high potential; needing to sit people in rows, at the right time for the right movie...it's a great start (because it did get really boring after the 50th round (however the satisfying sfx did help)). If you don't want to add anything, I would suggest the next best thing: taking stuff away! If there were less seats and less times available, players would feel the pressure and need to think ahead on grouping seating much faster contributing to a more engaging experience. However, I also have an addition I would like to suggest: more constraints! Maybe the people you ticket could have different stats like rowdiness, irritability, smelliness, or patience; put the rowdy people away from the irritable and closer to the patient. At the end, viewers who were placed by people they didn't mind would contribute positively to your score while viewers who had a bad time would contribute negatively. Just some ideas, good luck with whatever you decide to do!