Sydney Sweeney captivated audiences not only with her compelling performance but also with her stunning fashion choices at the European premiere of Apple TV+’s new psychological thriller, Echo Valley, held at London’s BFI on June 10, 2025.
In the film, Sweeney stars alongside the acclaimed Julianne Moore, portraying Claire, a troubled young woman who arrives at her mother’s remote Pennsylvania horse farm drenched in blood, carrying with her a violent mystery and a painful history of addiction. The narrative delves deep into the complexities of a mother-daughter relationship, exploring the lengths a parent will go to protect their child.
Speaking with The Standard on the red carpet, Sweeney reflected on the emotional intensity of her role in Echo Valley compared to her breakout performance as Cassie in HBO’s Euphoria. “Oh it’s very different, very different,” she said. “But I was very lucky I had an amazing crew on this film and Julianne is just a dream to work with. Honestly I would go home happy every night.”
The film’s raw and volatile scenes between Claire and her mother Kate, portrayed by Moore, demanded a high emotional toll. Sweeney recalled one particular moment after filming a screaming scene at Moore, saying, “I feel so horrible, I remember after one of my first takes when I was screaming at her I said, ‘I’m so sorry, I’m so sorry.’ She [Moore] is one of the kindest people I’ve ever worked with and I really hope I can work with her again.”
Claire’s character wrestles with profound emotional pain, addiction, and strained familial ties. Sweeney explained how she channeled Claire’s fury: “It depends on the character’s situation, what she’s going through in the moment. We’re all human. We’ve a lot of fury down there — but Claire, she’s struggling with so much, especially addiction and just the pain she’s going through, in relation to her mom. There’s just a lot to play with.”
Beyond the gripping storyline, Sweeney made a striking impression with her fashion choices throughout the Echo Valley press tour. Arriving in London after kicking off the tour stateside, she demonstrated a flair for balancing edgy and elegant looks.
At the London premiere, Sweeney dazzled in a bespoke Miu Miu gown that echoed modern-day royalty. The dress featured a sculpted bodice with a delicate keyhole cut-out at the bust, halter-style straps gracefully wrapping around her neck, and off-the-shoulder sleeves that emphasized its elegance. A long, flowing train swept behind her as she moved, completing the regal effect.
Complementing the gown, Sweeney wore dazzling David Morris jewelry, while her beauty look was soft and princess-like, characterized by luminous skin, glossy lips, and brushed-out curls. This appearance marked a dramatic style pivot from her earlier look that day, where she had turned heads in a sharply tailored suit.
Her sartorial journey during the press tour has been nothing short of a marathon, with several outfit changes per day. In New York, her off-duty style leaned heavily on suiting, often with vintage flair. She sported a Jean Paul Gaultier pinstripe blazer worn without pants and a demure Givenchy skirt set by John Galliano. For the film’s New York premiere, she went full lady in red with a billowing Vera Wang ball gown, later changing into a crimson Vivienne Westwood dress for the post-premiere party.
In London, Sweeney followed a similar formula, arriving initially in a low-cut pinstripe pantsuit paired with a white tank layered underneath, before switching to the elegant Miu Miu gown for the evening premiere.
Her approach to press fashion reflects a careful balance between boldness and refinement, showcasing her versatility both on and off screen. This duality mirrors the complexity of her role in Echo Valley, where she portrays a character grappling with internal turmoil and external conflicts.
Echo Valley itself stands out as a tightly wound psychological thriller that not only explores the dark recesses of addiction and family secrets but also highlights the intricate dynamics between a mother and daughter. With Julianne Moore’s seasoned presence and Sweeney’s compelling intensity, the film promises to be a standout addition to Apple TV+’s slate.
As Sweeney continues to navigate her rising stardom, her recent work demonstrates a commitment to challenging roles and a growing command of her craft. Her candid reflections on the emotional demands of Echo Valley, coupled with her admiration for Moore, reveal a grounded artist eager to grow and collaborate.
With the film now premiering internationally and Sweeney’s press tour underway, audiences can look forward to experiencing the gripping narrative and powerful performances that make Echo Valley a psychological thriller worth watching.
