- Jaime's return to King's Landing is moved up ahead of schedule, mainly to complete his story arc with Brienne, whereas he would spend much of next season still travelling with her if he were to arrive after Joffrey's death and Sansa's escape as in the books. This has the interesting side effect of putting him, Brienne, Joffrey, and Sansa Stark all in the city at the same time before Joffrey's wedding to Margaery Tyrell, a situation that for spoilered reasons doesn't occur in the original series.
- When Walder Frey calls himself Lord of Riverrun, he is perhaps referring to himself being the Lord Paramount of the Trident, which would make sense if the Freys supersede the Tullys for their help in the Red Wedding. It also excises the side plot of Littlefinger being made Lord Paramount, a role he really doesn't exercise as it's just a stepping stone for a plan he's following anyway, and since he is made Lord of Harrenhal anyway, it doesn't change anything.
Analysis / Game Of Thrones S 3 E 10 Mhysa