The actor has made her name in the terrifying Halloween franchise, which sees her playing a woman called Laurie Strode who is stalked by creepy masked killer Michael Myers.
But she has now revealed that she isn't a fan of the genre herself.
Curtis - who has reprised the role of Laure for new sequel Halloween Ends - said on The Graham Norton Show: "I don't like watching them. I don't know why anyone likes watching them, but I'm grateful they do.”
She went on: "They screened it for me in an empty movie theatre and I had the volume control.
"As soon as the scary music started I'd turn down it right down.”
The actor first played Laurie in 1978 in Halloween, which was about mental patient Myers, who had been locked up for killing his sister but escapes and goes on a rampage in his hometown.
She has since returned for several movies, with the latest, Halloween Ends, out now.
The movie has been touted as the conclusion of the slasher saga, although it is not known if that will definitely be the case.
Curtis said on Norton's show: "It is emotional saying goodbye to Laurie Strode.
"I've been playing her for 44 years. That's two thirds of my life so it's very weird."
"The first movie changed my life 100 percent and every dot of goodness in my life came from Halloween," said the star.
The Graham Norton Show is on BBC One tonight (30 September) at 10.40pm and is also available on BBC iPlayer.
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