The Stanley of the title is Kubrick, and this fascinating documentary profiles one of the few people in the legendary – and legendarily private – director’s inner circle. A cab driver and aspiring Formula 1 racer, Emilio D'Alessandro was initially hired as a chauffeur, but the two men hit it off so well that D’Alessandro quickly became Kubrick’s personal assistant; the pair stayed together for more than 30 years and through four films.