Duration

I think an important aspect of the movement-image in cinema is that it happens in duration. Deleuze says that duration is change, that it changes and does not stop changing. Cinema gives us a movement-image because it expresses a duration which changes, producing a qualitative change in the (open) whole. Such a qualitative change suggests to me something made new – a newness that is its own movement, not simply a reconstituted movement reproduced on a screen. In this way I also think that the movement of a film is never trapped but is always in relation between the various sets, objects, the viewer, etc. I have trouble with the idea of duration though, because I don’t know where to find its end. A film has an identifiable length, but it also continues with me after the reel has stopped. But what continues? Does the movement-image of cinema occur only in specific duration outside of myself or can the duration be stretched out beyond the identifiable time-length of the film?