"The first time I saw Paranormal 2 was with an audience, and I was terrified," Featherston tells PEOPLE. "I can not watch either of the Paranormal films alone."
Recalling a particular experience with her films, Featherston still freaks herself out. "I tried once to watch Paranormal Activity 1 alone because I had a different version of it – a new cut," she explains. "And I said, 'Oh, I want to see what they changed.' And I put it in and got to the first knife scene and had to turn it off. I was like, 'No, no, no, no, no. I can't do this.'"
Although she cannot handle watching her own movies, Featherston is a huge fan of classic horror films. "My favorite scary movie is Candyman," she says, adding, "I love being scared, so [Halloween] is kind of the perfect time of year to have scary movie marathons."