Be warned, if you are prone to motion sickeness like I am. I had to leave the theater after an hour to throw up in the bathroom. Then, when I went back to my seat, I just kept holding it in... my husband was there and he seemed to enjoy the movie... and we did pay $30 for the IMAX 3D! So, when I got home, I was in the bathroom throwing up for 20 minutes. Today (the day after), I feel sick all day still.
The effects were interesting and different. It was eye opening.... the parts I did see. The storyline isn't all that original.