What’s most impressive about Romanian filmmaker Cristian Mungiu’s morally complex drama, Beyond the Hills, may well be his insistence upon remaining firmly in the grey rather than taking sides. Another filmmaker might have examined this tale, based on a real-life exorcism, and turned it into an anti-religious parable in which science- and only science- possesses the sense and rationality necessary to make sense of and survive in the modern world. That’s hardly the point Mungiu’s making, of course, but some might draw that precise conclusion regardless of his efforts to make nearly every character in his film culpable in its central tragedy. Just like in life, though, there are no easy…