A prolific but controversial British writer who denied the existence of gas chambers at Auschwitz.

An American professor of Jewish Studies.

The film explores the difference between "opinion" and "fact," the ethics of historical research, and the danger of giving a platform to misinformation.

The script, written by David Hare, famously utilized actual court transcripts for the courtroom scenes to ensure historical accuracy.

Under British libel law at the time, the burden of proof lay with the defendant. To win, Lipstadt and her legal team had to prove that the Holocaust occurred and that Irving had intentionally manipulated historical evidence.