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On September 21, Jennifer Lawrence moves into the House at the End of the Street and while the terrifying film will keep audiences trembling with fear, filming the thriller kept Lawrence, and her co-star Max Thieriot, in constant laughter.

EXCLUSIVE PHOTOS - Jennifer's Hate-ful New Role

"It was great working with Jen," Thieriot says in this ETonline exclusive featurette. "She's really down to earth and easy to work with. She doesn't take everything too seriously. While we were on set, it was full of joking around, hanging out, goofing off, which is nice because it really lightens the mood while you have to be really serious and people are dying."

VIDEO - Watch a Trailer For House at the End of the Street

And given the film's aptly truncated title, H.A.T.E.S., it should comes as no surprise to hear Thieriot call House at the End of the Street, "A rollercoaster of emotions, thirlls, excitement, surprise, excitement, shock [and] terror."

House at the End of the Street opens on September 21.