Ditching her girl next door style, Kendrick stepped out in an off-the-shoulder LBD that featured black buckles along the bodice and a ruffly hemline. She paired the goth Moschino by Jeremy Scott dress with strappy patent heels and a dark smoky eyes.
We haven't seen this type of sultry look from Kendrick before, but girl knew how to work it on the red carpet!
The Pitch Perfect star admitted that even she was surprised by her fashion choice for the evening, telling ET's Lauren Zima, "It's, like, too punk rock for me. I feel like I have to pitch down my voice."
The bold frock is fitting of her role in The Accountant, however. "Yeah, you should be afraid of me and this film. We're coming to blow your mind," she joked, trying out the deeper voice -- for a moment. "Dammit, my voice went high-pitched again."
Kendrick stars in the film with Ben Affleck, who's proved his merit as not just an actor but a director. He recently said that all thespians should try their hand at directing to learn even more about acting, but the actress admitted she's happy staying in front of the camera.
"I have seen enough people direct movies that I know that it takes like ten years off your life, so I don't know," she told ET. "If I have a death wish, I feel like I would direct a movie."
Directing may not be her forte, but Kendrick has tried her hand at another profession: writing. Her first book, Scrappy Little Nobody, hits shelves in November, which she's proud of but also nervous for people to read.
"I was reading all these other women's writings as inspiration, and I was like, 'That's so awesome that they've shared that, and I feel so connected to them now,'" she said. "And then you're like, 'Oh no, anyone can read this. Literally anyone and take quotes out of context.'"