The mind works by narrative above all else, I think. Now, take an audience of 'cinefiles', people who are seriously into movies, their meaning, etc., etc ... and the mind surely becomes tuned to interpreting the datastream a certain way ... so Joe Bloggs sees the avant-garde film and thinks, WTAF, this is a waste of my life? Whereas the cinefile begins to wriggle and squirm with delight, interpreting all manner of illusion, allusion, meaning and significance ... it's just a stream of random images, dude!
Two people walk down a street ... recount their experience ... often it will seem like two different streets ...