Caporegime
Sorry to be pedantic, but that wasn’t a walker they showed Cersei, it was a wight.It sounds like Cersei's plan is to use her army to mop-up after the battle at Winterfell. It may be that the NK heads straight south and she ends up fighting the battle for the north? As far as I can remember we have only seen one dead walker in the south, the one they took to show Cersei. As such we don't know how well they actually do in the warm? I know the long winters go on for years, but do they extend that far south?
Have to agree, there were some very dark scenes, my ole 1080p LCD was struggling a bit. Dunno if local dimming helps, like you get on the newer stuff.
Unfortunately, I heard Kit Harrington joking about filming 55 night shoots in a row, so I suspect we have more dark scenes to come
A walker would have really scared the crap out of her. They all look about 7ft tall and as menacing as it comes.