Film is ideally viewed in the native French as opposed to dubbed English version "The Bastard King" linked to in quote for it's larger geographic availability.
OST is fairly minimal trending towards dark tendrils stalking an elusive outcome of dire consequence. Per motif dwelling on environmental ruin film bangs you over the head with. Kumbaya this is not. One to sit in the dark and let first drink of the day wash over you removing all stress.