Visible crew/equipment: During the scene when the confederate regiment begins to move up little round top, right after the "7-8 bullets shoved down the barrel line", a audio technician and boom mic can be seen to the left side of the image hiding in the trees. (01:57:15 - 01:57:50)
Visible crew/equipment: Lights from what appears to be the high school football field are visible in the distance during Pickett's charge.
Visible crew/equipment: During Picket's charge, shadows of camera trucks can be seen a lot.
Answer: Yes. After the 2nd Maine Infantry was disbanded, there were 120 men with 1-year of service left. They mutinied because they said they only agreed to fight under the 2nd Maine flag and the Army disagreed. So they were marched under guard to the 20th Maine, led by Chamberlain. Chamberlain was able to convince most of them to fight, even though he was ordered to shoot any who did not fight.
Bishop73
Is there a reason why a few of them refused to fight?
Yes. The same reason why they mutinied.