Oh, no. I believe they are shooting the 3rd one in the right order. He's just doing the prep early.

I see what you mean. If it's dialog, it's easier if you have someone else to read it with you. Barring that, I make a playlist of songs that my character would like and I use that. I've gotten down full-page single-spaced monologues in about two hours that way. I'd think of the scene, I'd hear the song in my head and no matter what else is going on, the words would always come back. It works.