I wasn't too impressed by the trailer the first time I watched it, but I've watched it a second time and I've decided that I liked it. You can find it on youtube
here.
It looks like they paid attention of the visuals from the game. I remember having to climb up one of the towers that you can see in the trailer and while the armor the prince is wearing is what he wears in the second game I'm glad it seems that they had the detail.
I'm still not expecting much from this movie because I enjoyed the game so much, but my low expectations might help me like it more.