Barry Lyndon and the Oil Painting Filter Effect in Photoshop CS6

I watched Barry Lyndon today and was quite taken aback by the way Stanley Kubrick mimicked the style of the paintings of the era. I was told that you were supposed to use light to create a sense of depth, but Barry Lyndon eschews this and does the obverse, flattening the image to create the sense of a two-dimensional canvas. I tried to highlight this by vulgarly applying the "oil painting" filter in Photoshop. Don't they look just like paintings?