Arnold Schwarzenegger's affair has been his "biggest personal failure."
The 65-year-old action star's 25-year marriage to wife Maria Shriver collapsed in 2011 after it was revealed he had fathered a secret love child, Joseph, now aged 15, with his housekeeper Mildred Baena. Schwarzenegger said: "This is not the first time I have been confronted by failure or by a disastrous situation. I've had my share of disasters. But there were more victories and I've always been able to get up again when I fall. I always knew how to enjoy life and I always believed very strongly in both working and playing really hard. And I have four wonderful kids ... Well, actually, five ... who have been a great joy, so life couldn't be better."