From an interview with Renaissance man and film editor extraordinaire Walter Murch:

BLDGBLOG: When you’re actually editing a film, do you ever become aware of this kind of underlying structure, or architecture, amongst the scenes?

Murch: There are little hints of underlying cinematic structures now and then. For instance: to make a convincing action sequence requires, on average, fourteen different camera angles a minute. I don’t mean fourteen cuts – you can have many more than fourteen cuts per minute – but fourteen new views. Let’s say there is a one-minute action scene with thirty cuts, so that the average length of each is two seconds – but, of those thirty cuts, sixteen of them will be repeats of a previous camera angle.

Now what you have to keep in mind is that the perceiving brain reacts differently to completely new visual information than it does to something it has seen before. In the second case, there is already a familiar template into which the information can be placed, so it can be taken in faster and more readily.

So with fourteen “untemplated