With the disillusioned “Eren” controlling the marauding “Titans” trampling everything in their path underfoot, it looks like an impossible task for the folks of “Marley” to thwart this “rumbling”. Maybe, though, “Armin” and “Mikasa” can find a way to thwart him by combining their skills and forcing mankind to reconcile their different factions and join forces too? It’s a conclusion to a series but stands alone well enough for you not to have followed that as this vivid, if not exactly detailed, animation takes us on a story of treachery, loyalty, and even a degree of light psychological horror as the android-looking critters  threaten to obliterate humanity, like lemmings, over the edge of a cliff. In many ways it also serves as a tidying up exercise removing some established characters, sometimes quite emotionally, as the denouement embodies the values of teamwork and resilience whilst impressing us with some acrobatics and quirks along the way. It would certainly help if you’d seen the rest of the series, but the studios are getting much better at packaging these cinema releases to make sense on their own without detailed previous knowledge of the characters, and this action drama does just about enough even if it is very long for what it is, and there is a great deal of padding.