Tommen tells Jaime he suspects Cersei of Trystane Martell's murder. In the books, Cersei indeed plotted to assassinate Trystane, but her scheme was foiled because someone (whose identity is not revealed) in King's Landing informed Doran. By the point the books reached, Trystane is alive and in Sunspear. See more

Goofs

Yara claims that her brothers Rodrik and Maron were killed on the same day during the siege of Pyke. Maron was indeed killed during the Siege of Pyke, but Rodrik was killed earlier and on different battle - at the battle of Seagard. See more