A film is its own thing and in an ideal world I think a film should be discovered knowing nothing and nothing should be added to it and nothing should be subtracted from it.
My sister played the piano. She's two years older than me, and I always wanted to play something. So my grandmother got the guitar for me, and showed me a couple of chords to start off. And then I got me a book. Next thing you know, I was playing along with sister.