Goofs

When Schwimpf is punched and falls down, he drops his coat on the ground, but it is on the table in a following shot.

As Sylvia writes on the back of the photo, the script is sloppy; the 't' in "with" is uncrossed, and the word "my" is unreadable. The locket is inches away from the picture. As she signs her name, the writing is perfect, and the locket has moved closer.

At 1:27:27, the position of David holding the letter changes between shots.

When the French attack is shown after several other attacks by the Allies coming from the East, the French attack is coming from the West. It should have shown coming from the same direction.

(around 1:46:15) The title card says "breath" instead of "breathe".

When David says goodbye to his stiff, formal parents and is then greeted affectionately by his dog, as he pets the dog's head, a "treat" can be seen hidden in his hand to make the dog affectionate.

When Mary paints the star on the driver's side of Jack's car, the right point of the star is imperfect as she throws the brush to the ground. When Jack turns around to see the design, it is perfectly done. Jack then walks to the front of the car and as Mary leans on it, you can partially see on the upper left hood that the same designed is already painted on the passenger's side.

When David and Jack are summoned for their first mission it is a dawn patrol, however when the planes are preparing for takeoff the shadow of each plane is short shadow located directly under the plane. The angle of the sun indicates that it is midday.

The film is set during the years 1917-1918, but most of the female civilian clothes and hairstyles are contemporary with the late 1920s, particularly the clothes worn by Clara Bow in the home sequences and in the Folies Bergère sequence. Bow and almost all the other female characters have bobbed hair, common in 1927 but almost non-existent during World War One.

When Jack and David shoot down a German bomber, the soldiers in the just-bombed village come running out and celebrate atop the bomber's wreckage, but by the time it was shot down, the bomber was a good many miles away from the village--too far away for the troops to just run out to its wreckage.