The following statement has been issued by the BBC.
"You’ve Been Trumped" is an award-winning film that has been screened at festivals around the world. During the making of the film, Donald Trump declined the opportunity to take part.
We are confident that Donald Trump was offered sufficient right to reply in accordance with BBC Editorial Guidelines. Donald Trump chose not to participate but the film-maker took care to reflect his views on a number of different occasions in the film.
Source: BBC Press Office