Speaking for myself, I do not believe it was ever released. Click here to go to the thread on this forum that discussed this interview in the past. Kevin has a portion of the interview on the forum's Duke media page. you can see it by clicking here.
"I couldn't go to sleep at night if the director didn't call 'cut'. "
Just to add something since I haven't posted in a long time. the guy standing with Duke in this one is "Broadway Joe" Namath. quarterback for the NY Jets at the time the picture was taken. He tried his hand at acting as well. He was over rated as a football player in my mind and a worse actor.