Continuity mistake: In one of the fighting scenes Legolas is ready for battle, but when you look at him first his hair is behind his shoulders the next camera shot showed his hair perfectly laid out in front of his shoulders, then the next shot his hair is back behind his shoulders again.
Continuity mistake: During Aragorn's speech to his army at the black gates, the direction the flags on the spears blow constantly changes. When we see him from behind facing them, they blow to his right, and when we see him in the POV from within the crowd, they are blowing to his left.
Continuity mistake: When Frodo is in Shelob's lair, before actually seeing her, there is a semi close-up of a bird swinging about upside-down in the webs. There is thick webbing that stretches from the bird's body to the tip of its beak, but in the next close-up the webbing only reaches halfway down its beak.
Continuity mistake: At the Grey Havens, just as Gandalf stands before his four brave Hobbits and says, "I will not say, 'Do not weep,' for not all tears are an evil," note the design on Pippin's scarf. When Gandalf says, "It is time, Frodo," the pattern on Pippin's scarf is entirely different, though it's the same style scarf. It then reverts back to the previous pattern when Frodo boards the White Ship.
Continuity mistake: In the previous movie Oliphaunts make sounds similar to real-life elephants. However, in this movie, they sound entirely different.
Answer: Aragorn is 210 years old when he dies. Some of the early texts give his age at death as 190, but Tolkien eventually confirmed that 210 is the correct age.
Tailkinker ★