It's bizarre quite how many films have been made about the creative process, many of them with a lofty sense of purpose, as if it were a forensic investigation for which the camera was a particularly adept tool. Sadly, this isn't the case. At best the writing-of (or painting, or sculpting, or choreographing) films are quasi-biopics, and at worst they make their audiences into voyeurs witnessing a rather disgusting parasitism, as one big, youthful mass medium sucks the life out of another smaller, weaker and older.