most film is historically based on literature
there are many great films that are not.
great or ground breaking cinema can operate completely independent from
literature.

Except that no one teaches your statement. Story structure came before film.
Film has always drawn on literature, whether it's experimental or mainstreat.
And in case you didn't notice, we discussing a specific film here, so I have no
idea what you're all worked up about. Try following the thread next time.

RB