“George (R.R. Martin) lays the trap beautifully. You never see the slaughter coming, but when you reread the chapter, all the clues are there and you curse yourself for being blind to them.
“We wanted to achieve the same effect: misdirection was our chief ally. The first scene hints at a new beginning for Robb Stark and his war effort. It was critical that the audience sees that Robb and Cat believed they had a future before it’s brutally taken away from them.
“Likewise, the initial meeting with Walder Frey was critical to the misdirection. If Walder Frey seems to forgive Robb too readily, a savvy audience would immediately suspect treachery. We wanted Walder to humiliate Robb, but leave some room for reconciliation. In this regard, we hoped that humor would help mask the coming savagery.”