Nicole Kidman stars in "Babygirl," which is set to be released on December 25.Emma McIntyre/WireImage via Getty ImagesNicole Kidman said she considered giving up on acting after the birth of her third child in 2008.Her mom, however, encouraged her not to give it up completely.Kidman said she's inspired by other working moms who "keep going."Nicole Kidman once almost gave up on acting.In an extended interview with CBS posted on Sunday, the "Babygirl" actor reflected on moments when she thought of leaving her career."When I gave birth to Sunday, I was like, well, I think I'm pretty much done now," said Kidman, 57, who gave birth in 2008.