I am pleasantly surprised. Almost every comment or review here is somewhat or completely against this movie, though I can understand why. However; from my perspective I actually enjoyed this. Even if they did take elements from other movies and twist them a little (as mentioned in another comment.)

I have not read the books so my thoughts are that strictly on the movie. After reading the comments here and watching it here are my thoughts.

Consider the time between the two chapters, so to speak. It looked to me that it must of been only a few months between the end of the fist movie and the beginning of this one. Tris was still grieving over the death of her parents and she was feeling guilty for killing her friend. I for one couldn't and don't blame her for feeling that way, nor came I fault the creators for taking that direction with the movie.

The hair cut, to me symbolized Tris' growth and evolution into who she wants to be and not conforming to what society thinks she should be, like the factions. As a side note, it could have also been that the actress was working on another movie which required the look before starting this one, OR she herself felt more comfortable with it. Who knows.

The dialog was nothing deep or profound but at least it flowed and was believable from scene to scene in my opinion. It wasn't a few words and then action. It was a conversation, and I wasn't bored by it.

Yes this movie is aimed at teens and yes things may feel dumb downed in terms of intellect for many but this is a series and hopefully it is done right in terms of helping the characters evolve and grow. Stories are retold in so many different ways for different generations. Comparisons will be made. For myself I am looking forward to the next movie.