That’s not to say she enjoyed every aspect of getting physical onscreen.
"Despite what people seem to think of me, it’s never fun kissing people you don’t know," she laughs.
"But killing them? I loved it."
In the film, penned by Academy Award-winning screenwriter Diablo Cody (Juno), Fox stars as Jennifer, a possessed teenager who feeds upon the bodies of the young men at her high school. It’s a plot guaranteed to have half the global male population buying a copy of it on DVD when it hits stores early next year.