Arnold Schwarzenegger's Son Could Pass As Father's Twin

Continuing to promote his biography, Arnold Schwarzenegger says he thinks he will get back together with Maria Shriver one day. INSIDE EDITION has the latest.

The likeness is amazing. If photos of Arnold Schwarzenegar from the 70's and his son Joseph were placed side-by-side, there would be an uncanny resemblance. Father and son for sure.

Fifteen-year-old Joseph is the out-of-wedlock son of Schwarzenegger and the family maid, Mildred Baena. Joseph seems to look more like Schwarzenegger than any of the four children he has with his now estranged wife, Maria Shriver.

Schwarzenegger's publicity campaign for his bombshell book, Total Recall, continued last night with an appearance on CNN. He made yet another appeal for reconciliation. "I can only tell you that I hope eventually we can rebuild the relationship, and that we will be together as one family," Schwarzenegger said in his appearance.

But Schwarzenegger biographer and Daily Beast writer Laurence Leamer believes Schwarzenegger is simply trying to sell books by suggesting a reunion is a possibility.

"I think he's an immensely shrewd man. He's brilliant at using media. He knows that's not going to happen. There's no way. He just put that out there, because it makes him seem more attractive and more sympathetic. She is not going to take him back," Leamer told INSIDE EDITION.