Sixteen years after an English court discredited his work and the judge called him “antisemitic and racist”, the historian David Irving claims he is inspiring a new generation of “Holocaust sceptics”.

On the eve of a major new Bafta-nominated film about the trial, Irving, who has dismissed what happened at Auschwitz concentration camp during the second world war as “Disneyland”, says that a whole new generation of young people have discovered his work via the internet and social media.

“Interest in my work has risen exponentially in the last two or three years. And it’s mostly young people. I’m getting messages from 14, 15, 16-year-olds in America. They find me on YouTube. There are 220 of my lectures on YouTube, I believe, and these young people tell me how they’ve stayed up all night watching them.

“They get in touch because they want to find out the truth about Hitler and the second world war. They ask all sorts of questions. I’m getting up to 300 to 400 emails a day. And I answer them all. I build a relationship with them.”

Irving v Penguin Books Ltd was one of the most infamous libel trials of the past 20 years. An American historian, Deborah Lipstadt, had accused him in her book, Denying the Holocaust,and Irving, then a somewhat respected if maverick historian, sued her and her publisher. The film, Denial, with a script by David Hare, is released at the end of this month and stars Rachel Weisz as Lipstadt and Timothy Spall as Irving. It depicts how Lipstadt’s legal team fought the case. ...