Sundance: Robert De Niro Screens HBO Doc on His Late Father, Bradley Cooper Attends

"Remembering the Artist Robert De Niro Sr." screened Sunday, followed by a Q&A with the filmmakers and Robert De Niro himself. PARK CITY -- Robert De Niro the actor has never been particularly forthcoming about his personal life -- nor anything else, for that matter. The very private New York-based Oscar winner rarely gives interviews or shows up at events. But for the first time, he reveals a great deal of his youth and upbringing, his early family life, and his relationship with his father, th...