STEALTH REBELLION Servants revolt alongside an attempted assassination and a half-hearted mystery

Into our disheveled modern world, run by politically, morally and sartorially sloppy leaders on both sides of the

Atlantic, the feature film version of “Downton Abbey” arrives just in time to tidy up. All brand names and franchises lean into the concept of fan service; this one leans so far, it falls forward onto a fainting couch. It’s not a movie, really. It’s a commemorative “Downton Abbey” throw pillow.

It’ll no doubt placate millions of fans of creator Julian Fellowes’ global TV smash, which preoccupied much of our own United States in its six PBS seasons from 2011 to 2016. Screenwriter Fellowes keeps things in moderate-to-medium bustle, circling an extremely simple idea. King George V and Queen Mary are coming to Yorkshire (the time is 1927, just after the series’ narrative timeline): They’ve invited themselves, along with an invading army of butlers and cooks, to stay at the pleasantly expansive manse of the Earl of Grantham (Hugh Bonneville, who gets weirdly little to do) and his Yankee wife, Cora Crawley, the Countess of Grantham (Elizabeth McGovern, same).

Downton’s retired butler Carson (Jim Carter, he of the gorgeous stentorian voice) swings back into service, gratefully, while Barrow (Robert JamesCollier), onetime footman promoted to butler, is introduced into Yorkshire’s gay underground. The depiction is sympathetic, though it will strike some as slightly ahistorical.

Attempted political assassination shares the story