Flying Circus (1968)

Ace, a World War I aviator hero, duels with Fritz Von Wienerschnitzel, an enemy German army officer who has posed as Ace's superior. The two battle in a series of aerial fight gags. In the windup gag, Wienerschnitzel accidentally lands at an American airbase. "My mother told me there'd be days like this," the villianous Wienerschnitzel curses in German.