i would like to disrespectfully disagree ..... you say we watch more movies than filmmakers thats why we may know better how to make movies...
RIZ FREAKING KHAN..... what you are saying is.... k ....... main aik din main 100 gol gappay khata hun is liye mjhe gol gappay bannaany walay se better pata hai k kaise gol gappay banaye ja sakte hain.....
you consume products .... but filmmakers make those products
some big white beard indian guy said a chai wala will tell you how to run a country how sachin should play , how he should have avoided getting out ..he will have a theory and opinion on everything....that he can do everything but one thing he can't do well...is to make a good cup of tea.
a consumer may not know how to be a producer and vice versa. (i said may not because its not a universal truth there are exceptions ofcourse.)
there is loads of detailing goes into making somethiing (micromanagement)
even if you learn the recipe online .... by readying thousand of books ...still you wont have any experience in making gol freaking gappas. hands on experience
now you may feel that you know a good screenplay , good dialogues , good script good acting makes a great movie right???? how simple it is..... make all these 4 things great and you have a great product.... WROONNNNGGGGGGG... its a matter of perceptive .. something that you feel is good may not be felt the same by someone else.
something good on paper .... doesn't always translate that well on screen and makers can't judge it properly .... they are not looking at their product like neutrals .... a movie is like a filmmakers baby ... they dont see its flaws... they only see it through their eyes...and see greatness..... !!
(i dont know if im making any sense.....but everything is clear in my head i dont know how well its coming here in my answer.... just like a movie making)
(and secondly ...i swear on your life.... im gonna go and get myself some gol gappas now.... my mouth is watering)