This movie was OK but nothing special. A few things that bothered me:
- Loki was a poor villain. He lacked charisma, personality and motive. Exactly why was he mad at Thor and Odin? I mean, he finds out he's a frost giant and 2 seconds later he's screaming at Odin. He claims Odin doesn't love him as much as he loves Thor but there isn't a single scene in the movie to back this up. I don't get his resentment of Thor either. If they had shown Loki as a jealous brother who wanted the throne then i would get it. But now, out of the blue he wants to be king and hates his brother. i don't buy it.
Obviously, Loki was upset because Odin kept the secret from him, and because he discovered his true origin by himself naturally he was very pissed off. It doesn't explain in great details but in the comics Loki always feel inferior to Thor, because Asgard has a warrior culture, and Loki's talent lies in magic and trickery. Loki didn't feel Odin loves him as much as Thor because Thor was being named the heir to the throne, and not him. In the end, Loki had said he wanted to prove himself worthy to the all-father Odin. That's why he decided to destroy the realm that frost giants inhabited.
- Thor comes to earth and falls in love with the first woman he sees. Why? Seriously why? What is it about Jane that would make a Norse god of thunder fall in love with her in just 2 days? He spends all this time fighting along side a beautiful strong woman but he falls in love with a bland science geek.
First of all, Jane was the first mortal woman he ever contacted with, and let's face it Jane/Natalie Portman is a very attractive woman. He also met her during several personal crisis that he faced in his lifetime, from being exiled from Asgard, to possessing a mortal & fragile body, to the revelation that he caused his father's death and his own mother didn't want him (Loki's lies). Basically, during life-or-death situations and life-altering events, the person who offered you alot of support will have an effect on you. However, you are wrong to say that Thor is in love with Jane; he didn't initialize the kiss, but she did. I think Thor is very fascinated by her and wanted to see more of her, and perhaps it will develop into a romantic relationship in the sequel. But Thor never once said he's in love with Jane, merely wanted to see her again.
Btw, I do agree with being so close to Sif should've had an effect on him as well, but who knows if they haven't been "friends in benefit" since they are essentially immortals?
- Exactly what made Thor change his mind about wiping out the frostgiants? His 2 days on earth? How?
Like I said, even though he didn't spend an eternity on Earth, he went through very dramatic & life-altering events that changed his personality fundamentally. Heck, he was killed, and I don't care if you were a god or not, it's going to have a lasting effect. In the end, he learned that it is better to be more compassionate toward others, and killing frost giants suddenly lost its appeal to him. Besides, he didn't really want to just kill the frost giants in the first place, but to pay a retribution to them after they broke the truce & sneaked into Asgard to steal their artifact.