The assault case against Oscar-winning screenwriter Dustin Lance Black was dismissed mid-trial on Wednesday.
Mr Black, who is married to Olympic diving champion Tom Daley, was accused of assaulting Teddy Edwardes at a nightclub in Soho on 18 August 2022.
He was alleged to have twisted the presenter's wrist "very hard".
But a judge at Westminster Magistrates' Court dismissed the case, citing inconsistencies in Ms Edwardes's evidence.
The Crown Prosecution Service has released CCTV footage of the incident at a Soho nightclub.
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