LONDON — When we first see him, Mr. Knightley is completely naked. Later, Emma Woodhouse warms her exposed backside by a roaring fire. In the couple’s climactic romantic scene, blood gushes from Emma’s nose.

In moments like these, the new film adaptation of Jane Austen’s “Emma,” which opens in British theaters on Friday, seems like a bold departure from its restrained source.

The list of names involved in the film is a directory of buzzy millennial talent, suggesting a 21st-century take on the 1815 novel. And the trailer echoes recent spiky, comic period dramas like “The Favourite.” But this new version of Austen’s frequently adapted work is, in fact, a rather faithful and straightforward adaptation.

With a screenplay by the novelist Eleanor Catton, the youngest winner of the Booker Prize, this is the feature film debut for Autumn de Wilde, who’s previously shot an album cover for The White Stripes and a music video for Florence and the Machine. The soundtrack is by Isobel Waller-Bridge, who also wrote the ecclesiastical choral score for the second season of her sister Phoebe’s show “Fleabag.”