Sam Neill is reliving one of the “most difficult” scenes he’s ever had to film.

Neill portrayed Major Campbell in “Peaky Blinders,” who rapes Aunt Polly, played by late actress Helen McCrory. “Peaky Blinders” was created by showrunner Steven Knight, who is now set to write the latest “Star Wars” film and a “Vertigo” remake.

“Easily the most difficult bed scene I’ve ever done was in ‘Peaky Blinders.’ My character, the hideous Major Campbell, rapes Aunt Polly, played by Helen McCrory. It is deeply disturbing, and I was anxious about how we would go,” Neill wrote in his upcoming memoir “Did I Ever Tell You This?”

Neill continued, “For one thing, this was acting out a situation, a crime, utterly beyond my imagination…By the time we shot this I knew [co-star] Helen very well. We found the same things funny, I respected her deeply, and I think she felt the same about me.