At the start of the film the C160 is shot down, this is a high wing aircraft. When the troops reach the aircraft it is a low wing DC3. The actress event runs past the single rear tail dragger wheel.
As the character "Monster" lies dead from machine gun fire, the film begins to fade to red, but before it fully transitions, Monster blinks and takes a breath.
At the end of the prison yard scene when the prisoners run off after the stabbing, the film crew on the right side of the yard is visible from the overhead shot.