Consisting your friend is a huge movie buff I’m surprised it didn’t bother the heck out of him, film fans usually turn that crap off as soon as they turn on the TV. Supposedly it’s because sports, soap operas and a lot of low budget TV are shot & broadcast at higher frame rate than film - so when you watch a film with the frame rate artificially increased your brain goes ‘I am watching low budget soap trash’ subconsciously. I think people are just used to film looking a certain way and anything that makes it appear quite different is too distracting for them to relax into the fantasy.