There’s a lot of fun to be had in Birds of Prey, but one of its stand-out highlights is its approach to action. How did the stars feel bringing a sense of brutal grace to Harley and the team’s fight against Roman Sionis? “It’s just bad ass,” Rosie Perez told us. “I mean, really, it’s just bad ass!” In conversation with io9 at Birds of Prey’s world premiere press junket in London, England, director Cathy Yan as well as the Birds of Prey themselves—Mary Elizabeth Winstead (Huntress), Rosie Perez (Renee Montoya), and Jurnee Smollett-Bell (Black Canary)—discussed the film’s approach to action and the extensive prep work it took with stunt team 87Eleven to prepare its stars. Plus, how Perez kicking ass and taking names on set inspired the rest of the cast to raise their own games! Check out our interview above—which includes captions if you’d prefer to read what the team has to say. Birds of Prey is in theaters starting tomorrow, February 7. Check out more from io9: This New Empire Strikes Back Set Footage Is the Best Thing You’ll See Today [Review] The Suicide Squad Is How You Pull Off a Spectacular Plan B 10 Great Doctor Who Moments From Jodie Whittaker’s 13th Doctor Comics, Contracts, and Covid: Inside the Scandal at Terrific Production The Mandalorian’s Pedro Pascal Says He Doesn’t Want to Take His Helmet Off Too Much Who’s Who in Netflix’s Cowboy Bebop DuckTales Has Blown My Dang Mind [Review] Shang-Chi Brings Compelling New Heroes and Awe-Inspiring Action to the MCU The Other History of the DC Universe’s John Ridley on Giving New Voices to Legacy Characters io9 Roundtable: We Need to Talk About Ready Player Two, Especially That Ending It’ll Cost $6,000 to Star Wars LARP With Your Family at Disney World [Review] Dune Is the Jaw-Dropping Sci-Fi Epic You’ve Been Waiting For Manga Legend Junji Ito Talks Making Horror, Adapting It, and Cats Hulu’s Animaniacs Reboot Is Nostalgic for All the Wrong Reasons The Many Looks of Ahsoka Tano Spider-Man’s Best Cartoons, Ranked [Review] Watching Halloween Kills Is Like Digging Your Fingers Into a Gaping Wound For more, make sure you’re following us on our Instagram @io9dotcom.