That's impressive! Seeing movies for a good 9 hours is a marathon. The highest I have gone is about 5 hours but of course this can vary depending on your interest in the film. Some people can be so exhausted after several hours of watching while others can go for twelve hours.A lot of people binge watch, however, the question how long is your binge watching session. How many hours can you watch movies without getting tired. I have watched three parts of The Lord of the Ring movie, it took 9 hours and I did not get tired. When I binge watch I can watch got 7-8 hours.