Corrected entry: Right after Brom is hit with the spear to save Eragon, Eragon bends down and picks up a sword off the floor and throws it at Durza. This sword is Zar'roc (Brom's red sword) when it was supposed to be the plain sword he had just dropped on the floor a moment ago after casting the spell. As they are escaping, Zar'roc is still shown in Brom's sheath and is not removed until Brom tells Eragon to take it.
Corrected entry: When Eragon is attacked by the second Ra'zac, Eragon is suddenly replaced by Brom with no visible indication of where Brom came from or where Eragon went.
Corrected entry: How come Saphira couldn't even carry three people very far because of their combined weight, yet not long after, she can carry Eragon and a full set of armour while fighting and doing aerobatics during the big battle?
Corrected entry: During the scene when Eragon returns from hunting and embraces Roran, after the quote "The prodigal hunter returns." there is a shot with a close up of Eragon flashing past and on his left hand there is a wrist watch.
Corrected entry: Brom told Eragon that he needs to know the ancient elvish word in order to cast magic but when Eragon was trying to heal Brom and later, Saphira, he said 'Please heal', which is hardly elvish.