Films are the same as everything else. Most are trash, some are good, and a few are excellent. I'm gonna echo what others are saying and recommend you go back to basics. No offense since I'm only in my mid 20s myself but if you're say 19 and your only exposure to film is the crap in the theaters nowadays, I can see why it can't hold your attention. That said, when you say stuff like "I know it's not real because the actor is in many movies" you have to realize it's all about suspension of disbelief. You gotta be willing to at least meet the film halfway and not be consciously aware of its fakeness. After all, all art is artificial.
In any case, I suggest you start with stuff like the French New Wave; check out Le Samourai and Les Choses de la Vie. Watch American classics like Citizen Kane, Gone With the Wind, A Clockwork Orange. Ingmar Bergman is a personal favorite of mine, he made great films like The Seventh Seal, Wild Strawberries, and Persona. Look up director Michelangelo Antonioni. I personally am not a fan of his but he made some important films that deal with the human condition: La Avventura, Blow Up, and others. If you want some more modern classics you can watch stuff like Blade Runner, Godfather 1 and 2, Chinatown, There Will Be Blood, My Left Foot, No Country For Old Men, etc. Approach it as you would literature. In time, you will find your tastes.
Well I woke up today to find my new lady character still running in circles with 15 million+ blood echoes, good enough to level up to 189. Not bad for 20 minutes work! More interesting to me than the blood echoes though is the chance to effectively skip straight to the forbidden woods and bypass the first 4 boss fights. I'll be interested to see how/if this breaks the game.