As superhero movies go, this is underwhelming stuff. …Only enjoyable in spurts.

… the shape-shifting Loki is the only character who makes himself new and interesting. When he is around, ‘Thor: The Dark World’ becomes a different film altogether. You wish there was more of him.

The rest of it is metal clanking.

…is not such a bad outing, you wish there was more though, not in terms of time but content.