It's not that it's not an enjoyable film, because it is, but it's a bit annoying to have to hunt out the nearest Potterologist afterwards and ask why Harry's stashed a piece of broken mirror in his sock, or why that old dear suddenly turned into a snake, or how many horcruxes there are / have been found / have been destroyed, or, most bafflingly, what kind of magic keeps Mrs Weasley's gigantic norks from dragging on the floor. Because none of those questions are answered within the film.
Director David Yates, having already made two bloated epics in the series, continues to fling everything at the screen with wild abandon regardless of whether or not it's necessary or makes sense, and frankly why should he care? He could film Harry Potter washing up for two and a half hours and it would still be the number one film of the year at the box office.
Fortunately there aren't any scenes of Harry doing the dishes, and in actual fact there are some great moments in this film. There's a cute dance scene that could have been horrendous but turns out very sweet, a genuinely moving death scene, a fantastic animated sequence and a remarkably saucy bit of nekkidness that will be most welcome to certain sections of the audience. I imagine.
Still, despite all this it's ludicrously enjoyable nonsense, there's bugger all else on this autumn to rival it and if nothing else it does give you a chance to contemplate the remarkable engineering that must go into Julie Walters' over-the-shoulder boulder holders.