The actress kept Zahara close to her as they and son Maddox headed home from Las Vegas.Having parents who are are one of the most famous couples in Hollywood, Angelina Jolie and Brad Pitt's children are probably more than used to the attention their family gets on a daily basis.But Jolie made sure she kept a protective arm around one of her daughters as they jetted into Los Angeles last night. The actress, 38, was joined by adopted children, daughter Zahara and son Maddox, as they headed home after flying in from Las Vegas.And she kept Zahara close as they passed the media throng who were waiting to snap them as they headed out of arrivals.But both kids seemed nonchalant to the attention, no doubt used to it by now, having travelled the world with their famous folks since they were very little.Jolie kept her face hidden behind large dark sunglasses after disembarking their flight from Sin City where she had been promoting her new movie Unbroken.She had been at Caesars Palace to promote the movie, and she addressed the audience during The State of the Industry: Past, Present and Future and Universal Studios Presentation, which is part of CinemaCon.Angelina is looking the picture of health, showing that a year can make such a difference after she announced last spring that she'd had a double mastectomy after doctors told her she had a high chance of developing breast cancer.Her mother Marcheline Bertrand died in 2007 at age 56 from ovarian cancer and Jolie was told she had a 50 percent risk of also developing the disease.She recently announced she intends to undergo more surgery and told Entertainment Weekly: "There's still another surgery to have, which I haven't yet."I'll, you know, I'll get advice from all these wonderful people who've I've been talking to, to get through the next stage."