If you haven't already seen THE SPECTACULAR NOW, be aware that this scene is a pretty big spoiler.
Although it's only six and a half minutes long, it represents a sizable section of the arc that Sutter's character travels over the course of the whole film. In these few minutes, all the expectations and illusions that Sutter has been maintaining about what his father is like come crashing to the ground.
Editorially, there are at least a few things that are interesting here. Normally, a dialogue scene like this would be done in matching sizes; it would be a tête à tête between Sutter and his father, with occasional cutaways to Aimee to "keep her in the scene." However, Shailene Woodley's performance here, as it was throughout the film, was extraordinary, even though she was mostly reacting to the dialogue between the two men. James Ponsoldt and I felt that by having her and Sutter share the screen equally, she could act as the lens through which the audience observed this increasingly uncomfortable exchange. We only went to Sutter's close-up near the end of the scene, when the dad's full callousness is revealed.
Other important choices in this scene involved keeping Roberta's impatience and the dad's growing distraction a factor in the proceedings; leaving the intimacy of the booth to occasionally open up the scene; and timing the end of the country song so as to create a depressing emptiness in the room at just the right moment.