There is something wrong with your calculations (they got me interested as I watched 300+ movies past year, not that I'm proud of that or something).
While there is, indeed, 8760 hours in a year, you could watch far more than 73 movies in that time. Say, we subtract 8 hours of sleep from that amount: 8760-(8*365)=2920 hours left. Say, we subtract 3 hours a day for your food needs etc: 2920-(3*365)=1825 hours for watching movies without doing anything else while having time to sleep and eat. That's roughly 900+ 2-hour movies.