Thor

The latest in the Avengers series is Thor and it is one of the more accessible despite being about a legendary Norse god cast out of his own realm and banished to Earth.
Aussie Chris Hemsworth plays the ample bodied Thor who must learn humility and other attributes of a ruler after his father Odin (Anthony Hopkins kicks him out of Asgard for starting a war.
His brother Loki (Tom Hiddleson) assumes the throne when Odin falls ill and, after being overlooked all his life as heir, sets out to fulfil his own agenda.
On Earth, Thor is discovered by Jane Foster (Natalie Portman) who is studying strange occurrences in the sky. Thor's arrival is one such occurrence.

If you enjoy the Avenger movies to date - Iron Man, Incredible Hulk etc, then this is your cup of tea.
Like a lot of 'origin' movies, it feels like Thor is a bit short because we have to get through the context before we get to the guts of the movie. But the back story is interesting in itself. I also enjoyed seeing the bonus scene from Iron Man 2 fit into the story nicely too.
It's a movie I feel like I need to see again, which is a good sign I enjoyed it. Next up in the series is Captain America then it is on to The Avengers next year.
An 8 out of 10, and stick through the credits for an important extra scene.