Denial is a 2016 biographical film directed by Mick Jackson and written by David Hare, based on Deborah Lipstadt's 2005 book History on Trial: My Day in Court with a Holocaust Denier. It dramatises the Irving v Penguin Books Ltd case, in which Lipstadt, a Holocaust scholar, was sued by Holocaust denier David Irving for libel. It stars Rachel Weisz, Tom Wilkinson, Timothy Spall, Andrew Scott, Jack Lowden, Caren Pistorius, and Alex Jennings.

Denial premiered at the Toronto International Film Festival on 11 September 2016.^[4] It was theatrically released in the United States by Bleecker Street on 30 September 2016,^[5] and in the United Kingdom by Entertainment One on 27 January 2017.

Deborah Lipstadt is an American professor of Holocaust studies whose speaking engagement is disrupted by David Irving, a British writer on Nazi Germany. He files a libel lawsuit in the United Kingdom against Lipstadt and her publisher for declaring him a Holocaust denier in her books. As the burden of proof in UK libel cases lies with the defendant, Lipstadt and her legal team, led by solicitor Anthony Julius and barrister Richard Rampton, must prove that Irving lied about the Holocaust.

To prepare their defence, Lipstadt and Rampton tour the site of the former Auschwitz concentration camp in Poland along with Professor Robert van Pelt who explains about the operation of the gas chambers, while the research team subpoenas Irving's extensive personal diaries. Lipstadt is annoyed by Rampton's apparently disrespectful questions on the subject; the team reduces her involvement in the case, arguing that she harms its chances of success. Members of the British Jewish community plead with her to settle out of court to avoid creating publicity for Irving. However, her team has a promising start when they persuade Irving, by appealing to his ego, to agree to a trial by judge instead of a jury, which he could have manipulated to his advantage.

Irving conducts his own legal representation, facing Lipstadt's legal team. Irving endeavours to twist the presented evidence for the defence. Lipstadt is approached by a Holocaust survivor who pleads for the chance to testify, but Lipstadt's legal team insists on focusing the trial on Irving.

Irving tries to discredit Professor van Pelt's evidence for the existence of gas chambers at Auschwitz, claiming there were no holes on the roof for the Zyklon B gas crystals to be introduced. His soundbite "no holes, no Holocaust" dominates the media coverage. Furious, Lipstadt demands that she and the Holocaust survivors be allowed to take the stand. Julius angrily counters that Irving would only humiliate and exploit a survivor on cross-examination, as he has in the past. Rampton visits Lipstadt at her home to explain his approach and earns her trust. In court, he subjects Irving to a skillful cross-examination and exposes his claims as absurd, while expert testimony from respected scholars like Richard J. Evans expose the distortions in Irving's writings.

As the trial concludes, the judge, Charles Gray, worries the defence by suggesting that, if Irving honestly believes his own claims, then he cannot be lying as Lipstadt asserted. Gray eventually rules for the defence, however, convinced of the truth of Lipstadt's portrayal of Irving as deceitful. Lipstadt is hailed for her dignified demeanour, while her legal team reminds her that, despite her silence during the trial, it was her writing that countered Irving's lies and provided the basis for the victory. At a press conference, Lipstadt praises her lawyers for their strategy.

In April 2015, Hilary Swank and Tom Wilkinson were selected to star in the film, based on the book History on Trial: My Day in Court with a Holocaust Denier by Deborah Lipstadt, with Mick Jackson directing, and Gary Foster and Russ Krasnoff producing under their Krasnoff/Foster Entertainment banner with Shoebox Films.^[6] Participant Media and BBC Films co-financed.^[7] In November 2015, Rachel Weisz replaced Swank, and Timothy Spall joined the cast, with Bleecker Street distributing the film.^[8] In December 2015, Andrew Scott, Jack Lowden, Caren Pistorius, Alex Jennings, and Harriet Walter joined the cast.^[9] Howard Shore composed the film's score.^[10]

Principal photography began in December 2015 and concluded by the end of January 2016.^[11] Denial was filmed in London and at the Auschwitz-Birkenau State Museum, Poland.^[12]

The film had its world premiere at the Toronto International Film Festival on 11 September 2016.^[13] The film was released in the United States in a limited release on 30 September 2016,^[14] and in the United Kingdom on 27 January 2017.^[15]