I didn't prefer this movie, actually the only reason I watched it was because Matsumoto Jun was in it. I got halfway through the manga before I stopped reading, so I knew what to expect. It wasn't the acting that I didn't like, but really just the whole feeling of the situation, if that makes any since. It's hard for me to see siblings in that type of relationship, so I didn't enjoy the idea at all. I would not recommend this movie to anyone.