Thus in a sense movement has two aspects. On one hand, that which happens between objects or parts; on the other hand that which expresses the duration or the whole. The result is that duration, by changing qualitatively, is divided up in objects, and objects, by gaining depth, by losing their contours, are united in duration.

Deleuze, Gilles. Cinema One: The Movement-Image. Trans. Hugh Tomlinson and Barbara Habberjam. Minneapolis: University of Minnesota Press, 1986.