is an American professor of Holocaust studies whose speaking engagement is disrupted by David Irving, a Nazi Germany scholar. 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 accused, Lipstadt and her legal team, led by solicitorAnthony Julius and barristerRichard Rampton, must prove that Irving lied about the Holocaust. To prepare their defence, Lipstadt and Rampton tour the site of the former Auschwitz extermination camp in Poland with a local scholar, while the research team subpoenas Irving's extensive personal diaries. Lipstadt is annoyed by Rampton's apparently disrespectful questions on the subject, and frustrated when the team minimises 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 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 skilful 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. However, Gray eventually rules for the defence, 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. Participant Media and BBC Films co-financed. In November 2015, Rachel Weisz replaced Swank, and Timothy Spall joined the cast, with Bleecker Street distributing the film. In December 2015, Andrew Scott, Jack Lowden, Caren Pistorius, Alex Jennings, and Harriet Walter joined the cast. Howard Shore composed the film's score. Principal photography began in December 2015 and concluded by the end of January 2016. Denial was filmed in London and at the Auschwitz-Birkenau State Museum, Poland.
Denial received positive reviews from critics. On the review aggregator website Rotten Tomatoes, the film has an approval rating of 82%, based on 164 reviews, with an average grade of 6.79/10. The website's critical consensus reads, "If Denial doesn't quite do its incredible story complete justice, it comes close enough to offer a satisfying, impactful drama – and another powerful performance from Rachel Weisz." On Metacritic, the film has a score of 63 out of 100, based on 34 critics, indicating "generally favorable reviews".