At the Los Angeles premiere of The Housemaid at the TCL Chinese Theatre on Tuesday, Sweeney channelled her inner Marilyn Monroe with a plunging white halter dress.
The Euphoria star wore a custom white halter-neck gown by bridal designer Galia Lahav, featuring a waist-cinching bodice and a sweeping skirt finished with a feathered hem.
The look was widely compared to the iconic dress worn by Monroe in The Seven Year Itch in 1955.
Sweeney completed the ensemble with loose, flowing waves, bold red lipstick and a shimmery eye, leaning fully into the golden-age Hollywood aesthetic for the high-profile premiere.
The Christy actor was joined by her co-star Seyfried, who stunned in a shimmering red dress from Monse’s Pre-Fall 2026 collection, paired with gold heeled sandals.
The pair posed together on the carpet as excitement builds for the psychological thriller’s release.
Based on McFadden’s 2022 novel, The Housemaid follows Millie (Sweeney), a young woman who takes what appears to be her dream job, only to find herself tormented by her increasingly volatile employer Nina (Seyfried).
Millie eventually discovers Nina and her husband Andrew (Brandon Sklenar) are hiding some sinister secrets about the family’s shocking history of control, abuse and hidden identities.
After the premiere, Sweeney changed outfits for the afterparty, slipping into a second white look with a strapless mini dress adorned with floral appliques, styled with white pumps.
This comes after Sweeney confirmed her “boobs [are] real” and she has not had plastic surgery because she is “so scared of needles”.
In a joint interview with Seyfried for Allure magazine, she said: “Let’s debunk them all [the rumours]. I mean, I have never gotten work done. I am so scared of needles, you have no idea.”
Seyfried said: “But it’s really effective once you get older, I’m telling you right now.”
“I am too scared of needles,” Sweeney said.
