William Wyler bought the film rights in 1948 and enlisted the Goetzes to aid in the screen adaptation.The field is strong enough to deflect any bombardment." Angered, Darth Vader knew that the rebels were alerted to their presence.He was furious that clumsy and stupid Admiral Ozzel came out of light-speed too close to the system.He ordered Veers: "Prepare your troops for a surface attack." On a view-screen, Vader reprimanded Ozzel and choked him with an invisible hand.As his commander gagged to death, Captain Piett was promoted to Admiral and given command of the troops, and ordered to make sure none of the Rebel fleet escaped from the planet.The main difference between the novel and the film is the reversal of the major roles: the narrating newspaper reporter akes precedence over the power-hungry governor in the novel.The map in BB-8""s memory banks, according o C-3PO, was incomplete and didn""t match any known charted system.