In the Lakehurst scenes, a European two-note emergency-vehicle horn alarm is heard rather than the American wailing siren. Two-note alarms were unknown in America in 1938.
At the beginning of the movie when they are launching the glider you can see (three times!) a vapor trail from a modern jet-plane in the sky.
As in "The Hindenburg" a piano is shown on board the ship. Initially a lightweight baby grand piano made from aluminum, the Blüthner piano, was on board but was removed before the ship's final voyage. It was on display at the Blüthner factory in Leipzig till it was destroyed in 1943 when the city was bombed.
The duralumin girders that made up the hull of the Hindenburg were not gray as depicted in the movie but coated with a blue enamel paint.
The survivors are taken to a makeshift hospital within the hangar, complete with cots, lamps, and nurses. However, this facility was available for use immediately upon the Hindenburg crashing when it should have taken hours to put together. The filmmakers apparently had this set already prepared prior to the crash scene.
Late in the film when Hindenburg is in flames at Lakehurst there is a Jeep in the background. The Jeep was first introduced in 1941.
The film is set in May 1937. Yet when people are being checked through the gate at the Lakehurst Naval Air Station for Hindenburg's arrival, the flag flying over the gatehouse is the current 50-star U.S. flag, which was not adopted until July 4, 1960.
The two Luftwaffe officers on the airship introduce themselves as Messerschmitt 109 pilots. However, in May 1937 the aircraft was still much in development and only had started to become operational at the time. The first instance when type gained much publicity was at the Zurich Air Show in July 1937.
The movie is set in May 1937. The glider in the beginning of the movie appears to be the SG 38 which was designed in 1938.
In scenes set in 1938 a light-colored Mercedes convertible seen towards the beginning is a 1950 model, and the large bus is a 1953 model.