The story of "Thor" of Marvel Comics is typical. Thor, the heir for the realm of Asgard, was banished to earth after disobeying his father's orders. On earth Thor fell in love with a human girl and learned about himself and life while his brother Loki caused trouble in Asgard with the frost giants.
While Thor (played by Chris Hemsworth) had a drool-worthy body and his hammer was pretty cool, the story was weak and everything seemed too simple. The plot was very predictable, like a fairy tale for boys (think Disney's "Hercules" with "The Sword In The Stone"). The fight scenes were brief and there wasn't enough action. Still, the film had a cute humor about Thor's character and some action scenes in 3D were enjoyable.
For Natalie Portman, an Oscar winning actress as Thor's love, she sure didn't do much. Natalie was suppose to be a "master physicist" but ended up running around like a valley girl with little impact on the story... Other than fulfilling the role of the main character's love interest- an expected element in every superhero movie.
Overall, there was too much going on with the realm of Asgard, Loki, Earth, Thor's human love, and frost giants to develop a solid plot or character attachment in the film. But it was a fun movie to watch, as the visuals of Asgard, the costumes and the special effects were impressive.