KIEFER SUTHERLAND is embarrassed he failed to realise his father DONALD SUTHERLAND's prolific status as an actor until he was 18.
The 39-year-old only watched some of his father's best-loved films when he became an adult and finally understood the importance of his dad's standing in Hollywood.
When asked about Donald's influence on him, Kiefer says, "Oh my God. Huge.
Huuuge. I felt home at 15 and obviously knew he was really famous but I hadn't even seen M*A*S*H.
"When I was 18 I got tapes of DON'T LOOK NOW, M*A*S*H, KELLY'S HEROES, THE EAGLE HAS LANDED, CASANOVA and 1900, and I watched them in two days.
"I remember feeling like the worst son ever: I hadn't know how good he was! "Forget about being famous - this was one of the most prolific actors in film."