Robert De Niro opened the 22nd Sarajevo Film Festival on Friday, presented Martin Scorsese's restored "Taxi Driver" and received the festival's first lifetime achievement award ? The Heart of Sarajevo. De Niro starred in the 1976 film in the role of Travis Bickle, a mentally disturbed Vietnam war veteran. Over nine days, some 100,000 expected guests will watch 223 movies from 61 countries in nearly a dozen locations in the city. At the end, winners will be announced in seven categories.