Millie Bobby Brown went from princess to provocateur Thursday night.

The 22-year-old actress hit The Plaza Hotel for the world premiere of “Enola Holmes 3,” stepping out alongside husband Jake Bongiovi and co-stars Louis Partridge and Noah Schnapp.

For the red carpet, Brown channeled a modern-day Cinderella in a custom pale blue silk Galia Lahav gown with a sweetheart bodice and a long pleated skirt. The design has a particular significance to the actress as she wore the same brand to walk down the aisle when she wed Jake Bongiovi in 2024.

The “Stranger Things” alum wore her hair pulled back into a long, loose braid and accessorized with a dazzling Chopard Haute Joaillerie necklace with 32.56 carats of diamonds set in 18k white gold.

Once the premiere wrapped, Brown capped off her night with an outfit change. Styled by Summer Lahti, the Netflix star arrived at the after-party in a sheer set by buzzy New York label Mirror Palais: the brand’s Amantes long-sleeve top ($617) and matching Anemone midi skirt ($825), a mocha mesh midi with floral lace appliqué and a silk panel at the hips that offered just enough coverage.

Brown completed the ethereal ensemble with Studio Amelia thong heels ($375) and an Epona Valley metal mesh headscarf ($358), whose rose print echoed the lace details in her outfit.

The actress has leaned heavily into romantic silhouettes for the “Enola Holmes” press tour, stepping out in a steady rotation of corsetry, soft neutrals, sheer separates and ruffles.

“Enola Holmes 3” — which follows the young sleuth to Malta for her wedding to Lord Tewkesbury when her brother Sherlock (Henry Cavill) is kidnapped — hits Netflix on July 1.

Beyond the press tour, Brown has been adjusting to two major life changes: the end of “Stranger Things” after 10 years and her first year of motherhood.

Brown and Bongiovi welcomed their daughter through adoption last summer and have largely kept the child out of the public eye, though fans recently speculated the actress may have subtly revealed the little girl’s name — Ruth — with a sentimental necklace.