JBrock

Continuity mistake: In the extended edition of The Two Towers, during the 'Elvish Rope' scene near the beginning, the mist disappears and reappears between shots. When Frodo falls and lands at the bottom of the ravine, there is lots of thick, white mist swirling around, but when it cuts to a wider shot, it has nearly all disappeared within a second. In the next close-up shot of Frodo, it has reappeared again.

JBrock

Continuity mistake: When Ginny snatches 'Advanced Potion Making' from Harry in the common room, and says "Who's the Half-Blood Prince? . That's what it says right here: 'This book is the property of the Half-Blood Prince'", she opens it at a random page in the middle of the book. When Harry sees the words 'This book is the property of the Half-Blood Prince', they are written on the first page. Also, the continuity is wrong as she is shown to switch pages between very quick shots.

JBrock

Question: When Fred and George were in possession of the Marauders Map, before giving it to Harry, how come they never wondered why Ron was always hanging around with a person called Peter Pettigrew? He shows up on the Map even whilst disguised as Scabbers, as we know from when Harry spots him.

JBrock

Other mistake: When Edward and Bella are playing chess on their Isle Esme, Edward takes one of Bella's pieces but puts his own piece down on the wrong square.

JBrock