Anne Morrow Lindbergh is depicted as being pregnant with her second child Jon Lindbergh on November 27, 1933. In reality, he was born on August 16, 1932, meaning that his mother was pregnant with him when his elder brother Charles, Jr. was kidnapped.
In the first 20 minutes of the movie (taking place in 1932) they showed a 1938 or 1939 Ford Police car (with siren).
On the stand Bruno said he was gassed on Xmas 1918, the war ended on Nov. 11,1918.