Right after Teague tells Paradine to wink, he kneels and reads from the Witchcraft book to release him, but in the next shot, as Teague rises from the kneeling position, the book is resting on the rocker, not the floor.
When Paradine opens the box of meat rations he is next to the right rear wheel of the supply wagon (as indicated when he leans his rifle on the wheel). Later, after meeting Teague, he looks across to the supply wagon but the ration box is nowhere to be seen.
Dauger, a Confederate soldier, refers to the battle of "Second Manassas" when he is describing the Second Battle of Bull Run. While Union soldiers named battles after nearby rivers and streams, the Confederates named them based on the nearest town. "Manassas" is correct in this context.
When Paradine is in the town full of "sleeping" Union soldiers and walks past the locomotive and tender, there are no tracks to be seen under the train.
Some of the "frozen" soldiers tremble.
Toward the end, Sgt. Paradine remarks that "we're losing... the Confederacy is cracking into little pieces... this cause is dying right in front of us". This would have been an absurd statement to make prior to Gettysburg, as the South appeared to be winning the war up until that battle.
Paradine suggests that the soldiers have been frozen by hypnotism, a term that was not widely known at the time. Even if he was aware of it, he would have used the term "mesmerism".
Sgt. Paradine "reconnoiters" an enemy town by barging down main street on horseback, in plain sight with no attempt at concealment.
At the 8:43 mark the shadow of the boom mic is visible in the lower left corner.
The Union soldiers shown as frozen while marching have their uniform jackets unbuttoned. This was against US Army regulations, as when outside of camp the men were to have uniform blouses (jackets) buttoned at all times.
When Paradine is walking through the frozen Union troops, two of the soldiers blink their eyes several times.