Last Life in the Universe is one of, if not the best movie I've ever seen (save for Trainspotting). Because of this, like many others, I tracked down Pen-Ek's other films and found this. I have to say that it was disappointing. Many here argue that those who did not like this film simple "didn't get it," because they don't have the mind or tastes for it. I'd have to disagree. If you appreciate Last Life then there's really no reason why you shouldn't be able to appreciate this, (had it good) as both films move at the same pace and have all the same people behind them. (I liked how they used the names Nid/Noi again, does he always do that?) Invisible waves looks the same, sounds the same, but for some reason just doesn't feel as good. Something is missing, something that could have been great was lost somewhere. Last Life didn't have much of a story but managed to be a masterpiece, and comparatively this film's story is much better but just doesn't work. One thing that really bugged me was the acting. All of it felt very fake; I was too often reminded that I was watching a film. The dialogue was poorly written, in my opinion, and probably contributed to that. Were Tadanobu Asano not in this I wouldn't even bother, even out of curiosity for Pen-Ek, as he is this films one and only saving grace. But even then he plays almost the exact same character as he did in Last Life, only a lot less interesting. All the ingredients for a movie like Last Life are here, but in the end it didn't just work.