For a physical production practically perfect as Rob Marshall’s Mary Poppins Returns (C+), its makers should have spent some tuppence on the sequel’s songs and screenwriting and provided its glum protagonist with a jolly holiday from all the topsy turvy plot contrivances. The lavish set design, resplendent costumes and meticulous vintage Disney animation are all in fine form, and the movie opens and closes very, very well. There’s just a lot of filler material that’s super- califragilstic- expiali- average in between. Emily Blunt’s taciturn take on London’s cloud nanny gets a bit eclipsed in all the madcappery, and Marshall’s tenuous grasp of tone does few favors for Ben Whishaw, Colin Firth, Meryl Streep or Lin-Manuel Miranda, the latter projecting for the balcony seats even though he’s on the Cherry Tree Lane where it happens. While passive protagonist MP tries to save two generations of Banks children from eviction and from their own imaginative inertia, it’s unclear for whom the audience is even supposed to cheer. Plus the youngest kids (the true heart of the film) frankly seem pretty well adjusted at the beginning of the movie. Marshall brings little dazzle dazzle in the form of fresh choreography, aside from a song trying to make fetch happen for lamp lighters (was that a skateboard ramp at one point?) And oh, don’t name check the bird lady just to wing-flap out of another plot hole. Despite the lovely craft, the art of the film’s storytelling is lacking. The fact that there’s not one single element this belated sequel improves on over the original shouldn’t sway families from seeing it, and there are indeed some tender and nostalgic moments; but this spoonful of chutzpah proves mild tonic.