The opening battle scenes are taken from Raintree County (1957) and are printed as a mirror image of the original footage. The same scenes can also be seen in, amongst other films, How the West Was Won (1962).
In the wedding scene, the Corporal states that "the Yankees have broken through at Winchester." That occurred on Monday, Sep. 19, 1864 (the Third Battle of Winchester).
The first of five films to feature both James Stewart and George Kennedy. The others were The Flight of the Phoenix (1965), Bandolero! (1968), Fools' Parade (1971), and Airport '77 (1977).
At the church, viewers observe Confederate soldiers with different colors of trim on their uniforms. The color red represents an artillery unit, blue represents an infantry unit and yellow represents a cavalry unit. Those same traditional military branch colors are still used in the U.S. Army.