After revealing she underwent a double mastectomy in February, Jon Voight says Angelina Jolie is focusing on her role as a director."She's doing good," the actress's father told PEOPLE at the Los Angeles premiere of his new film, Getaway, at the Regency Village Theater on Monday."She's getting ready to do her film, to direct her film," Voight, 74, added, referring to Jolie's next project, Unbroken, that starts filming in October.Based on the bestselling book by Laura Hillenbrand, Unbroken is the true story of Louis Zamperini, an Olympic athlete who became an Army Air Corps officer during World War II, survived a plane crash and years spent in Japanese POW camps. It's slated for a December 2014 release. When Jolie, 38, revealed her decision to undergo the procedure after genetic tests revealed she had a high risk of developing breast cancer in May, Voight – who was estranged from Jolie for several years – told the New York Daily News that he learned along with the rest of the world."I was surprised as anyone and deeply moved by the way she's handled this," he said at the time.The mom of six appears next in Disney's Maleficent, a re-telling of the Sleeping Beauty story form the evil queen's point of view, opening July 2, 2014.