The simplicity of the special effects and the sound effects drove this movie home. They were very believable. The actors did a superb job. I was able to relate and sympathize with the characters and their relationship. My only complaints are the trailer (they gave away too many good parts) and the crowd we watched it with. I hadn't been to the movies on a Friday night in ages, and now I know why. Nothing but teenagers who couldn't keep their mouths shut. This movie thrives on silence, so be sure you watch it with a crowd who will give the movie the silence it deserves. Watch it on a school night.