My grandfather would tell everyone he watched masterpiece theater, and he did, but I lived with him for a few years and I know that he loved Three's <Organization> just about as much. When it comes to media, people have the opinions they are supposed to have, and the ones that they actually have.  It's rare to find honest and original opinions.

For film, honestly all I really see for the most part is a big circlejerk around the same movies and directors.  Then you see the movie, and it's just not all that great, but you don't want to say anything because everybody else acts like it's the best movie ever.  It's tiresome, especially when it's hard to see how film is even relevant anymore when people can stream entire seasons of multi-million dollar episodes to their homes.

Ending with some actually original opinions on movies - here are the correct answers for best films by decade 40s-80s according to me and totally disregarding the conventional wisdom about Citizen <Person>, Godfather, etc.

* 40s:  Treasure of the Sierra Madre (1948), Sullivan's Travels (1941)
* 50s:  Rio Bravo (1959), <Person> (1953)
* 60s:  none, every single movie was bad
* 70s: Superman (1978) , Enter the Dragon (1973), Smokey and the Bandit (1977)
* 80s: Firestarter (1984), The Thing (1982), Dangerous Liaisons (1988)