Sydney Sweeney Stars in 'Custom of the Country' Film Adaptation | Everything You Need to Know (2026)

Get ready for a thrilling cinematic experience as Sydney Sweeney takes center stage in the upcoming film adaptation of "Custom of the Country"! This project is a true labor of love, with Sweeney not only starring but also producing this captivating tale.

Based on the classic novel by Edith Wharton, the film brings to life the story of Undine Spragg, an ambitious woman from the Midwest who sets her sights on climbing the social ladder in turn-of-the-century New York. As described in the official press release, Undine is a force to be reckoned with, armed with beauty, determination, and an unwavering ambition that knows no bounds. She fearlessly battles the entrenched elite, leaving a trail of controversy in her wake, until fate aligns her with love and fortune.

The talented Josie Rourke, known for her work on "Mary Queen of Scots," is both directing and writing this adaptation. Rourke describes Undine as the "original dangerous woman," and the casting of Sweeney as Undine is nothing short of perfect. Rourke believes that Wharton herself would have envisioned Sweeney in this iconic role, as if the character was written specifically for her.

But here's where it gets controversial... This project isn't the first attempt to bring Wharton's novel to life. Filmmaker Sofia Coppola had planned a miniseries starring Florence Pugh, but the project never materialized. Now, with Sweeney and Rourke at the helm, the story is set to unfold on the big screen, offering a fresh perspective on this timeless tale.

Casting director Nina Gold is currently assembling an ensemble cast to support Sweeney, and principal photography is expected to begin soon. The film is being fully financed by StudioCanal, which will release the film theatrically in multiple territories, including the United Kingdom, France, Germany, Australia, New Zealand, Poland, and Benelux. Worldwide sales will be launched at EFM.

Charles Finch, Sweeney, Alison Owen of Monumental Pictures, and StudioCanal are all on board as producers. Finch, who has worked tirelessly to bring this story to the screen, is delighted with Rourke's adaptation and the passion that Sweeney will bring to the role.

This project marks a reunion for Sweeney and StudioCanal, who previously released her box office hit "The Housemaid" in Australia and New Zealand. The film, an adaptation of Freida McFadden's thriller novel, has earned an impressive $250 million worldwide to date.

Anna Marsh, CEO of StudioCanal, expressed their excitement about bringing "Custom of the Country" to life, praising Rourke's vision and Sweeney's talent as the formidable Undine Spragg. This film promises to be a captivating journey, offering a fresh take on Wharton's sharp and timeless observations.

So, will this adaptation live up to the legacy of Edith Wharton's novel? Will Sydney Sweeney's portrayal of Undine Spragg leave a lasting impression? We can't wait to find out! Keep an eye out for more updates as this exciting project unfolds.

Sydney Sweeney Stars in 'Custom of the Country' Film Adaptation | Everything You Need to Know (2026)
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