In the opening moments of the film, Damian slides out from under a tractor that has rubber tires. Moments later the tractor is shown as having only steel wheels and no rubber tires.
As the group of children leaves town for Kiev, they are shown walking past the same house twice in succession.
When the German fighter plane fires on the truck carrying the guns, the telephone poles on the side of the road are perpendicular to the ground. However, when the truck is shown crashing, the same telephone poles are shown as leaning at various angles.
During the wagon ride in the hay-cart while the peasants are singing, little Grisha is shown first with, then without, and finally with his harmonica.
Walter Brennan and Farley Granger ambush 3 German soldiers, as one is about to throw a grenade he drops it but it doesn't go off.
Several characters speak of their current lives as 'living free' and not wanting to fall under the control of the invading Germans. Living in the Soviet Union, however, was anything but free. The Soviet Union was ruled by a single political party, the Communist Party, and no other parties, nor any dissension, was allowed or tolerated. Freedom of speech in the Soviet Union was non-existent.