The children of Hollywood star Matt Damon haven't had the chance to enjoy the privilege of boasting about their famous dad just yet, because the young ones are actually clueless about his role in the eyes of the viewers. Is the Bourne actor Matt Damon keeping his true identity from his little kids, who haven't realized that their daddy is actually a topnotch star in Hollywood? The actor said that his 11-year-old stepdaughter, Alexia, has seen him in several movies, adding that "she obviously knows. She hasn't seen all the movies, but has seen enough to know that's what I do. The little ones don't have any idea - we're trying to keep it that way." He is happy that with the help of new technologies, his two younger children with wife Luciana, three-year-old Isabella and one-year-old Gia, are not aware that he is a celebrity. He adds that, "It's more and more possible now with the prevalence of video cameras and technology, iPhones and BlackBerrys. Kids are used to seeing their own images on screens. So when they see me on a screen, it kind of makes sense for them: 'Yeah, he's on that TV and I'm on this laptop.'"