John Cleese made a startling revelation on a talk show set to air Sunday that he and his co-stars in the popular movie A Fish Called Wanda accidentally killed a man who died while watching the film.

"We killed a man," Cleese said, referring to his co-stars Kevin Kline and Jamie Lee Curtis. "[We] killed a man in Denmark. He was a dentist. He had a huge laugh, a famous laugh, very popular."

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The British Monty Python comedian recounted that when the Danish man went to see the film, "he started laughing about two minutes in and never stopped. They carried him out dead; he’d had a heart attack."

Cleese, now 84, told the story in the latest episode of GB News series The Dinosaur Hour, a talk show hosted by the Fawlty Towers legend.

When the film opened in July 1988, it quickly reached No. 1 status at the British box office. It earned nearly $62.5 million in the U.S. and Canada and 12 million pounds in the U.K.

Kline won an Academy Award for Best Supporting Actor, and Cleese was nominated for Best Original Screenplay.

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Cleese added that Kline had an interesting reaction to the news.

"I told Kevin this, and he said 'exactly which scene?'" Cleese added.