even if t weren't exactly the von trapps, the happy days that always seem endless.ntil the day that changes everything. almos years ago, 42 year old christopher reeve, a champion horseback rider, had an accident that was at once freakishly random and catastrophic. he was wearing a helmet. it was just a three foot jump, but the horse balked, and all 200 pounds of reeve's body weight landed on his neck. when he spoke of it with barbara walters, he was now paralyzed from the neck down and on a ventilator. >> i went forward, i had the great misfortune. >> to get my hand stuck in the horse's bridle. it's like going over with your hands tied. and that's why i landed straight on my head. >> it is his wife, dana, who will pull him out of his despair. >> and then she said the words saved my life. you're still. you and i love you. >> in the new documentary superman, it is also dana who will prepare their two year old son will and her 11 and 15 year old stepchildren. for the moment, they walk in to the machines, the tubes, and a dad so radically changed. >> dana walked us down