Factual errors: The burglars turn on a radio and instantly hear sound, when the vacuum tubes should have taken longer to warm up.
Anachronisms: In one scene, a pack of Camel cigarettes lies on a table, with a clearly visible bar code on the side of the package. The Universal Product Code would not be introduced until the 1970s.
Anachronisms: The song "Mairzy Doats" was played and commented on by the film's narrator prior to the point in the movie where the announcement of the bombing of Pearl Harbor is made on the radio. "Mairzy Doats" was not written until nearly two years later in 1943, therefore, the song could not have been heard on the radio before December 7, 1941.