I see on IMDB that one of the characters is the Aussie Ace Bluey Truscott. Should be good.
I really hope they portray the fighter tactics and weapons realistically. The spitfire had only enough .303 rounds for about 16 seconds. The pilots were trained to limit to 4 x 4 second bursts. It really pulls me out of the story when they fly straight with an enemy on their tail and have unlimited ammo.