Tumblr ate the post when I tried to post it. Don’t understand that one.
Breaking down a scene with voice over is quite easy. I prefer to make a note of the voice over in both the scene description and the “SOUND” section of the breakdown sheet like such: “JOE’S VO”.
But always double check with your director. They may secretly want a visual of Joe’s VO being delivered, which then is a new shot and should be accounted for when timing the day and treated like normal. Always check with your director in regards to VOs.