The young star portrays Emily Brenek, a girl who becomes possessed by a demon after her father, played by Jeffrey Dean Morgan, buys her an ancient box at a neighbourhood sale, and her most disturbing scene came when she had to face her fear of the winged insects.
But Calis had to hide her terror and sit still throughout the shoot - and she admits thinking back to the scene still haunts her now.
She tells the New York Daily News, "They were crawling in my pyjamas and on my face in a dark room. Inside, I was freaking out. But on the outside, I had to stay cool.
"It was pretty creepy - I'm not going to lie. I'm not scared of insects, although I am afraid of spiders. But all I could feel were their little legs all over me. I get shivers just talking about it."