On one occasion Shaw instructs Sergeant Major Mulcahy "at ease." During the Civil War this order would, historically, have been given as "rest" or "in place rest."
As the 54th Massachusetts march past a Southern plantation, a group of slave children run out to watch them. Undertaker greets them, and they wave; one child is wearing a digital watch on his wrist.
After Col Shaw is informed of his promotion, he and Maj Forbes converse outdoors, while Maj Forbes drinks champagne from a bottle of Dom Pérignon. The champagne was first produced in 1921 but did not go on sale until 1936.
When Rawlins is promoted to Sergeant Major, he is presented with the insignia affixed to a blue cloth backing. At that time the rank stripes were separate pieces and had to be stitched on individually.
In 1861 the Union Army prohibited flogging. Private Trip would not have been subjected to the lash, at least not by an officer as strictly by-the-book as Colonel Shaw. Other severe punishments were employed, such as being "spread eagled" on the spare wheel of an artillery limber, which often broke the man's back.
As the 54th makes its initial march past a mansion in Georgia, a square concrete kerb can be seen on the left-hand side of the road (to the soldiers' right).
As the 54th Massachusetts march along the street in their new uniforms for the first time, a modern electrical junction box is briefly visible on a wall in the background.
In one scene, as a Union soldier lifts his arm, he can clearly be seen wearing a digital watch from the 1980s.











