
The Last Of The Starks - S8-E4
Continuity mistake: In this episode, Kings Landing is shown as sitting on flat, plain-like terrain. In previous seasons, it was shown surrounded by water and mountains covered lush greenery.
Continuity mistake: In order to save him from Drogon's fire at the very end of the episode Jaime is thrust by Bronn into water about 40 feet deep. This shouldn't have been possible especially after Jamie is shown galloping on his horse along the watery beach side just moments before.
Suggested correction: As shown in the following episode, the undercurrents had carried them some distance down-river.
Unacceptable. An undercurrent may explain how they eventually got to the other side of the lake but not why the water on the shore became so deep so quickly.
And Now His Watch Is Ended - S3-E4
Revealing mistake: When Karl kills Craster, you can see the blood packet in Craster's mouth right before he spits up blood.
Suggested correction: It's not a blood pack. It's Karl's blade.

Continuity mistake: This is when the family is watching Bran practicing archery. The round target on the left has a large hole on the bottom right side, presumably from a previous arrow. This hole moves around throughout the scene, most noticeably in the shot after Arya shoots an arrow right into the middle of the target. (00:10:40)
Suggested correction: It's not a hole, it's a arrow plumage. And camera's angle.
Suggested correction: That is correct, however there is actually a reason for this, it was just never adapted from the books. Stains burned the woods during battle of the black water as an offering to the lord of light.
That doesn't remove the hills though.
lionhead