Just like the other MCU films before it, Thor: The Dark World has an official supporting two issue comic, and it's pretty darn awesome.
While it's mostly a rehash of the events of The Avengers, it's really great to see what was going on off-camera. Because these are official Marvel comics, it adds an extra dimension to the canon characters and events that you may not otherwise be party to.
The best part of this mini-series however, is the focus on Jane Foster, and her assistant Darcy Lewis. There's also some hilarious dialogue between Iron Man and Thor, right in the middle of the Battle of New York.
Want more MCU? Then this is a must-read.