Revealing mistake: In the final scene where Fonda and Holbrook are looking over the carrier at the crowds on the dock you can see that only the first rows of people are dressed in period clothes, the rest of the crowd are dressed as they would have been in 1976 when the film was made.
Revealing mistake: Utility poles are visible in the scene of the Japanese aircraft carrier launching planes for the first attack on Midway.
Revealing mistake: In virtually every shot of the flight deck looking up at the fighters and bombers overhead attacking the U.S. ships, the anti-aircraft guns show the red paper caps of the blanks rather than pointed bullets.
Revealing mistake: Still another "Recycled Footage" sighting, plus a double error in one: A scene has a truck blown up during the "attack" on Midway by a Japanese Fighter Plane. Same footage (a bit cut for time) from "Tora! Tora! Tora!" and Midway is small enough that trucks of that size weren't used on the Island.
Revealing mistake: Just before the Japanese planes were launched, you can see that the maintenance workers for the planes weren't moving. They were just statues.
Revealing mistake: Probably another instance of the recycled footage issue with this film. When the Japanese planes begin their attack on Midway Island a wide shot shows many of the Japanese planes with torpedoes attached to them. Shouldn't they all have bombs instead of torpedoes?