NEW YORK, Nov 20: ‘Weekend of a Champion,’ a documentary about British Formula One driver Jackie Stewart, went unnoticed for about 40 years until the London film lab where it was stored was closing and asked its producer, Roman Polanski, what to do with it. The Polish-French filmmaker, 80, had all but forgotten the 1971 behind-the-scenes film that detailed a weekend he spent with his close friend Stewart as the champion driver attempted to win his second Monaco Grand Prix. (agencies)