In the last month, I took 2 trips to Austalia and 1 to San Diego so have had a log of time on the flights. I mostly skipped movies but was thinking about this question while scrolling through what was available on the in-flight entertainment. Due to screen size, action is usually out for me as well as anything I am REALLY WANTING to watch as I would then rather watch at home. So, I choose Downsizing as it was something that seemed interesting when I first saw the trailer but later lost interest after hearing more about it. It works well on a flight as it is hard to argue it wasted your time as there isn't anywhere you can go and if I fall asleep, I am not likely to try to go back and see what I missed.
Everything else I watched where TV programs. I watched:
Animal Kingdom Season 1
Crashing Season 1
Curb Your Enthusiasm Season 9
Silicon Valley (first 3 episodes of Season 5)