What I do when I act and direct is I do a small version, go a little bigger, do a medium one, an over-the-top one, and then even bigger than that. I'll do six readings of the line. And they're not all the same. Just so I know if I was wrong about what I should have done, I luckily have this more subtle version.
Filmmaking, at the end of the day, is really - in addition to the story and all of the equipment and the actors, it's really about time management. And so the smartest filmmakers are the ones who sort of pre-visualize the film in their head and are literally shooting the shots they need to cut the story together.