First off, obvious big fat spoiler warning!
Secondly, we've teamed up with Movie Plot Holes , who are here to bring you a snarky run-down of some of the most glaring plotholes in one of this year's biggest superheroic blockbusters.
We've narrowed it down to five of the most glaring below, but for a full list, just head on over to Movie Plot Holes' Thor: The Dark World page .
(5) Frigga's interesting strategy!
(2) Thor's ridiculous plan
(1) Malekith won the war - but didn't realise it in time
For more analysis of Thor 's plot holes, spoilers and twists and turns, watch our in-depth spoiler-filled videocast below...