Trivia: This was the last Disney movie to include "A Walt Disney Production" at the end, as well as the first movie to be completed after Disney's death in 1966.
Trivia: The code for successful surprise (and the movie's title) "Tora! Tora! Tora!" was a shortening of the words totsugeki (attack) and raigeki (the Japanese term for torpedo bombers), and was originally spelled "To ra, to ra, to ra!" Those two shortened words were interpreted by American radio operators, who happened to intercept them, as the Japanese word for "tiger"; hence "Tora! Tora! Tora!"
Trivia: This marked Kenneth Connor's return to the series. His last film had been "Carry On Cleo" in 1964.