Unsane: Exclusive clip reveals you won't know who to trust in Steven Soderbergh's new iPhone-shot thriller

Claire Foy stars as a young woman involuntarily committed after attempting to escape her stalker

Though iPhone-shot cinema is hardly a new fad (see Sean Baker's 2015 film Tangerine), it's fascinating to see one of Hollywood's true stalwarts embrace its territory.

Unsane sees Steven Soderbergh use the filming technique for his new thriller that delves headfirst into the stark paranoia and terror which festers in victims of stalking and gaslighting.

The Crown's Claire Foy stars as a young woman who's left her hometown in order to escape the shadow of her longtime stalker, hoping to start a new life.

However, when she becomes involuntarily committed to a mental institution, her own reality becomes warped beyond comprehension. She's forced to ask herself: what is real? And what could just be her fears and delusions?

Jay Pharoah (Saturday Night Live), Joshua Leonard (The Blair Witch Project), Juno Temple (Atonement), Aimee Mullins (Stranger Things), and Amy Irving (Traffic) also star, with a script penned by Jonathan Bernstein and James Greer.

Unsane hits UK cinemas 23 March.

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