Wicked Little Letters star Jessie Buckley has revealed she came up with one of the film's most hilarious, NSFW moments.

Buckley reunites with her The Lost Daughter co-star Olivia Colman in Thea Sharrock's black comedy, which was inspired by a real-life 1920s feud between neighbours Edith Swan (Colman) and Rose Gooding (Buckley).

Speaking exclusively with Digital Spy ahead of the film's release, Buckley looked back on the improvised moment in which she flashes her bum as she runs away, explaining she had the idea of taking her underwear off for the scene.

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