Donald Trump ally Rudy Giuliani has described a video clip from the upcoming Borat film appearing to show him with his hand down his trousers as a "complete fabrication".
Mr Giuliani, a former New York City mayor and the president's personal lawyer, said he was tucking his shirt in after taking off recording equipment following an interview.
He said at no point was he ever inappropriate.
Mr Giuliani appears in the upcoming Borat sequel, starring British comedian Sacha Baron Cohen, while being interviewed by an actress playing Borat's daughter, who is reportedly posing as a TV journalist.
Sacha Baron Cohen
Sacha Baron Cohen
FILE PHOTO: Roy Moore (L) and Sacha Baron Cohen are seen in this combination photo in Midland City, Alabama, U.S., December 11, 2017 and in Hollywood, California February 28, 2016 respectively. REUTERS/Jonathan Bachman (L) REUTERS/Adrees Latif (R)
2018 Vanity Fair Oscar Party ? Arrivals ? Beverly Hills, California, U.S., 04/03/2018 ? Actress Isla Fisher and her husband actor Sacha Baron Cohen. REUTERS/Danny Moloshok
Cast members (L-R) Sacha Baron Cohen, Mia Wasikowska, Anne Hathaway and Johnny Depp pose at the premiere of "Alice Through the Looking Glass" at El Capitan theatre in Hollywood, U.S., May 23, 2016. REUTERS/Mario Anzuoni/File Photo
Cast members Johnny Depp (L) and Sacha Baron Cohen pose at the premiere of "Alice Through the Looking Glass" at El Capitan theatre in Hollywood, U.S., May 23, 2016. REUTERS/Mario Anzuoni
Cast member Sacha Baron Cohen (C) poses at the premiere of 'The Brothers Grimsby' in Los Angeles, California March 3, 2016. REUTERS/Mario Anzuoni
Actor Sacha Baron Cohen poses during a photocall for the film "Grimsby" (Grimsby: Agent trop special) in Paris, France, February 16, 2016. REUTERS/Charles Platiau
British actor Sacha Baron Cohen poses during a photocall on the Croisette for his latest movie "The Dictator", in Cannes, May 16, 2012. "The Dictator" is Cohen's fourth comedy film featuring the story of Admiral General Aladeen, a dictator from the fictional North African country of the Republic of Wadiya. REUTERS/Jean-Paul Pelissier (FRANCE - Tags: ENTERTAINMENT)
British actor Sacha Baron Cohen gestures as he speaks to the audience before a preview of his latest movie "The Dictator" in Cologne May 14, 2012. "The Dictator" is Cohen's fourth comedy film featuring the story of Admiral General Aladeen, a dictator from the fictional North African country of the Republic of Wadiya. REUTERS/Wolfgang Rattay (GERMANY - Tags: ENTERTAINMENT)
British actor Sacha Baron Cohen (C) signs autographs for fans during a promotional event for his film "Bruno" in front of the Brandenburg Gate in Berlin June 21, 2009. REUTERS/Pawel Kopczynski (GERMANY ENTERTAINMENT SOCIETY)
Workers dressed in pink shorts and hard hats pose for photographers and TV crews after hanging a large outdoor poster promoting Sacha Baron Cohen's new film "Bruno" in Sydney June 22, 2009. Cohen's new film opens at Australian cinemas next week. REUTERS/Tim Wimborne (AUSTRALIA ENTERTAINMENT)
Sacha Baron Cohen, dressed as the "Bruno" character from his film of the same name, poses for photographers as he arrives at the 2009 MTV Movie Awards in Los Angeles May 31, 2009. REUTERS/Mario Anzuoni (UNITED STATES ENTERTAINMENT)
Actor Sacha Baron Cohen who won the awards for best kiss for his work with Will Ferrell in "Talladega Nights: The Ballad of Ricky Bobby" and the best comedic performance award for "Borat: Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan" poses at the 2007 MTV Movie Awards in Los Angeles, California June 3, 2007. REUTERS/Phil McCarten (UNITED STATES)
British actor Sacha Baron Cohen, in character as a Kazakh TV reporter known as 'Borat', holds a baby kangaroo in Sydney November 13, 2006 during the Australian premiere of his film "Borat: Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan". The movie has led the worldwide box office for a second weekend, thanks to a boost in the number of North American theaters playing the comedy phenomenon. REUTERS/David Gray (AUSTRALIA)
British actor Sacha Baron Cohen gives the thumbs up as he arrives for the UK premiere of his new film entitled "Borat: Cultural Learnings of America for Make Benefit the Glorious Nation of Kazakhstan" in Leicester Square, London October 25, 2006. REUTERS/Kieran Doherty (BRITAIN)
Sacha Baron Cohen/Borat poses for photographers during the Photocall for 'Borat-The Movie' on the beach in Cannes.
Sacha Baron Cohen aka Ali G and his 'bitches' arriving at the Empire Cinema in London's Leicester Square, for the premiere of Ali G InDaHouse.
English actor and comedian Sacha Baron Cohen in character as Ali G, circa 2002. (Photo by Tim Roney/Getty Images)
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After a clip from the film was shared on social media, Mr Giuliani tweeted: "The Borat video is a complete fabrication.
"I was tucking in my shirt after taking off the recording equipment.
"At no time before, during, or after the interview was I ever inappropriate.
"If Sacha Baron Cohen implies otherwise he is a stone-cold liar."
Mr Giuliani said he called the police in July after "I realised it was a set up" and said the incident was "an effort to blunt my relentless exposure of the criminality and depravity of Joe Biden and his entire family".
Mr Giuliani has been behind stories published in the US media about Mr Biden's son Hunter.
Borat features Baron Cohen as the titular intrepid reporter and follows his misadventures across the US.
As with much of Baron Cohen's other work, the humour often derives from the comedian catching out unwitting subjects in mock interviews.
The sequel, titled Borat Subsequent Moviefilm, will be made available on Amazon Prime Video on October 23.