Factual error: The German Stielgranaten - as well as other traditional German WW II hand grenades - did not have a ring and pin like the ones the Allies used, but had a string which had to be pulled hard in order to arm them. Thus they wouldn't make such a distinct 'ping' as they do in the movie.
Factual error: The early scene in the movie theatre is in 1943. In the opening newsreel a Sherman Firefly tank is shown. This tank was not made until early 1944 [the long barrel and spherical muzzle brake are distinctive]. Even if we were to assume the tank was made earlier in the Marvel Cinematic Universe due to people like Stark working for the Allies it still would not be shown in a newsreel anyway for security reasons, with German spies and sympathizers present in the US during the war.
Factual error: In the section during the movie reel, there is footage of the 1939 world's fair in New York. The Unisphere is shown. Unfortunately, the Unisphere was constructed in 1964 for the 1964-1965 world's fair. The Perisphere (and Trylon) were the centerpiece of the 1939 fair. The Perisphere was a sphere 200 feet in diameter. The Unisphere is still standing in flushing meadows park in New York city.
Add timeCarol Sardinha
Factual error: In the scene at the World Expo, the flags are being displayed. Next to the US flag is the Bahamian flag. The Bahamas didn't have a flag until 1973 when it gained its independence. It used the British Flag or the "Union Jack" since it was still a part of Britain. Also, the flag disappears a few seconds later.