Sydney Sweeney and ‘The Custom of the Country’: Why This Ambitious Novel Adaptation Might Redefine Her Career

Sydney Sweeney’s Bold Leap Into Literary Cinema

Sydney Sweeney has rapidly become one of the most dynamic actresses on contemporary screens, but her new role in the highly anticipated adaptation of Edith Wharton’s ‘The Custom of the Country’ signals an audacious step forward. Known for her magnetic performances in both dramas and thrillers, Sweeney now prepares to embody Undine Spragg — one of the most incisively drawn social climbers in American literature.

A New Era for Sweeney: From Thriller Queen to Period Satire Prodigy

After captivating audiences with her work in psychological thrillers and the recent box-office sensation ‘The Housemaid,’ Sweeney’s trajectory is unmistakably upward. Her upcoming projects promise roles of unrivaled complexity. Notably, while her portrayal of Kim Novak in the much-discussed biopic ‘Scandalous’ has made waves, insiders are buzzing that her embodiment of Undine Spragg may become the real watershed moment of her career.

The Untouched Power of Wharton’s Classic

‘The Custom of the Country‘ stands out among great American novels for having, until now, never made it to the screen. Wharton’s biting satire slices through the shallowness and ambition of turn-of-the-century New York, exploring the brutal rise of a Midwestern outsider desperate for social elevation. Production is underway in Lisbon, with Josie Rourke (‘Mary Queen of Scots’) directing, bringing cinematic life to Wharton’s world with lush period detail.

Meet Undine Spragg: A Role Packed With Oscar Potential

Sweeney’s character, Undine, is a force of nature—fascinating, ruthless, and deeply flawed. As a newly rich Midwesterner navigating the treacherous social waters of post-Gilded Age New York, Undine seduces, manipulates, and schemes her way through a system built on status and old money. Her journey, propelled by a failed romance with a not-so-wealthy poet-lawyer and her relentless pursuit of influence, exposes the dark heart of American society. For any actor, capturing Undine’s transformation—from vulnerable outsider to master manipulator—is a daunting challenge, but one that could just as easily be the springboard to elite recognition within the industry.

Sweeney’s Ambition Behind the Camera

Further highlighting her creative agency, Sweeney isn’t just taking the lead—she and her production company, Fifty-Fifty Films, are co-producing alongside Studiocanal and Monumental Pictures. This move positions her both in front of and behind the camera, echoing the ascent of multi-hyphenate talent that increasingly defines Hollywood’s power players today.

Why ‘The Custom of the Country’ is a Cinematic Event

For literature buffs, the adaptation is a long-awaited event. Decades after Sofia Coppola’s ill-fated attempt to bring Undine Spragg to Apple TV, this production finally delivers on the novel’s promise to redefine period satire for modern audiences. The high-fashion settings, complex relationships, and biting dialogue are tailor-made for Sweeney’s nuanced expressiveness and sharp wit. Oscar buzz is a real possibility, not least because Wharton’s source material is considered one of the crowning achievements in the canon of American fiction.

Looking Ahead: Sweeney Among Today’s Most Watched Screen Stars

With her role as Undine Spragg poised to be a true acting showcase, Sweeney could see her career marked by this very performance. Far from being pigeonholed, she’s evolving into a talent capable of carrying weighty dramatic arcs and embodying women with unapologetic ambition. For fans of classic fiction and sharp-witted period cinema, ‘The Custom of the Country’ is set to be a banner moment—both for Edith Wharton on screen and for Sweeney as a definitive leading lady of her generation.