Dylan O’Brien and James Sweeney Form an Unbreakable Bond in the First Trailer for ‘Twinless’
Lionsgate / Roadside Attractions
Sundance’s Audience Award winner explores grief, identity, and chosen family with sharp wit and emotional depth.
Grief, friendship, and emotional reinvention collide in Twinless, the darkly comedic family dramedy that made waves at the 2025 Sundance Film Festival. Roadside Attractions and Lionsgate have now released the first official trailer ahead of the film’s theatrical debut on September 5.
Written, directed by, and starring James Sweeney (Straight Up), Twinless centers on two grieving strangers—played by Sweeney and Dylan O’Brien—who meet at a support group for those who have lost their twin siblings. What begins as a raw connection quickly morphs into an intense and inseparable friendship, one that begins to blur the lines between healing and dependency. But as their bond deepens, buried secrets begin to surface—some of them heartbreaking, others potentially destructive.
Dylan O’Brien, who also serves as executive producer, delivers one of his most nuanced performances to date, balancing charm with a quiet volatility. Sweeney’s signature blend of biting humor and emotional sincerity elevates the film’s themes of identity, trauma, and the fragile architecture of chosen family.
Following its Sundance premiere, Twinless won the coveted Audience Award and secured distribution with Roadside Attractions and Lionsgate for North America. Sony Pictures Worldwide acquired international rights, signaling the film’s global potential. The ensemble cast includes Lauren Graham, Aisling Franciosi, Tasha Smith, Chris Perfetti, François Arnaud, Susan Park, and Cree Cicchino—each bringing layers of complexity to this uniquely affecting narrative.
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The trailer offers a first look at the film’s quirky yet poignant tone, showcasing moments of levity, emotional breakdown, and sharp interpersonal dynamics. With crisp dialogue and a visual style that echoes indie gems like Little Miss Sunshineand The Skeleton Twins, Twinless finds humor and humanity in the wake of unspeakable loss.
Sweeney, whose debut feature Straight Up became a cult hit in 2020, continues his exploration of modern relationships with this second outing—delivering a story that is both intensely personal and universally relatable.
With its September 5 theatrical release on the horizon, Twinless promises to be one of the year’s standout indie titles: a film about losing a part of yourself and finding something unexpected in return.
Watch The Trailer Below:
