How do you begin to describe “The Lobster”? A twisted and surreal love story? A pitch black comic morality play? An absurdist fantasy on a theme of societal convention? “The Undateables: The Movie”? It’s all these and much more as director Yorgos Lanthimos takes us on a bizarre journey into an uneasy totalitarian future where romance is governed by a ruthlessly applied set of rules. According to…