Import Blu-ray/Region All. Hal Foster's Sunday-comics saga of a young Viking prince in the service of King Arthur is brought to the screen in CinemaScope and Technicolor in Prince Valiant. ALIANT. Trained for the Round Table by Sir Gawain (Sterling Hayden), Valiant (Robert Wagner) takes time out to fall in love with the beautiful Princess Aleta (Janet Leigh). The villain of the piece is the Black Knight, aka Sir Brack (top-billed James Mason), who intends to topple King Arthur (Brian Aherne) from his throne, then conquer Valiant's people in Scandia. But Prince Valiant proves a fearsome opponent to the usurping Sir Brack. Sadly, most currently available prints of Prince Valiant have been panned-and-scanned, denying viewers the opportunity to revel in Henry Hathaway's creative utilization of the CinemaScope format. Eureka.