The Oscar-winning actress, known for her dramatic onscreen performances, plays I Love Lucy's Lucille Ball in Aaron Sorkin's upcoming Amazon Studios biopic, which focuses on the late sitcom star's turbulent relationship with co-star and real-life husband Dezi Arnaz, played by Javier Bardem. In a remote video chat with comedian Chris Rock, Kidman discussed her new movie role. "I am way out of my comfort zone right now," the actress told. "I'm free-falling." She also talked about how she works on modifying her accent for her acting roles. "I've had to put in an enormous amount of time on Lucille Ball right now," she said, "because she has a very particular rhythm and way of speaking." Ball and Arnaz wed in 1940 and played a married couple on the sitcom I Love Lucy, which aired for six seasons until 1957 and remains one of the most famous American shows of all time. News about Kidman and Bardem's involvement in the movie was announced this past January.