This will sound sacrilegious, and of course the best way to watch a great film is to have the time to enjoy and savour it, lights out, no phone, like the cinema. BUT I realised I was often watching shitty TV shows because I just wanted to watch something for half an hour. But you can literally just watch half an hour of a film and then watch another half hour another time. Plus if you get sucked into the screen you only watch a 2 hour film rather than being stuck watching like 5 hours of a random show.