Lascaux, Megaloceros - A close up of a painting of a deer

Prehistoric cave art isn't really an art movement as it is a period in mankind's artistic development. It predates writing, printmaking and basically encompasses the genesis of both early sculpture and painting. It is also not a hot topic for art historians, but always of interest to historical anthropologists. Anthropology is the study of mankind's behaviour and origins, and asides from studying bones and fossils, it also studies the ancient architecture , tools and artwork mankind left behind.