The BBC-produced film Five Daughters, about the murder of five women in Ipswich in 2006, has won a film award at the Raindance festival in London.
It was named best UK feature by a panel of judges including Charles Saatchi and Motorhead singer Lemmy.
New York-based feature I Am A Fat Cat was named the film of the festival.
Best international feature went to Son Of Babylon about an Iraqi boy searching for his father after the fall of Saddam Hussein.
Directed by Mohamed Al Daradji, the film won two awards at the Berlin International Film Festival and one at Sundance Film Festival.
Five Daughters, which starred Ian Hart, Sarah Lancashire and Jamie Winstone, was shown as three hour-long episodes on BBC One in April.
Steve Wright was convicted of murdering the women, who worked as prostitutes to feed their drug addictions, in 2008.
Stanley Pickle picked up best UK short and the international prize went to LIN.
The award for best debut feature went to The Story Of My Space and the best micro budget feature was given to Macho.
The best documentary category was a tie between Sounds Like A Revolution and There Once Was An Island.