Saw August Rush last night.
Let me start by saying that yes, you have to suspend disbelieve for a couple of key plot devices. With that in mind, let me also say that this was the type of movie that you watch and then say: "you know, they should make more movies like this," but they don't because nobody watches movies like that (does that make sense?).
In a nutshell: I LOVED this movie, even though I had to suspend disbelief, even though it was over the top, even though the producers were playing with my emotions. That was all ok, because I TRULY ENJOYED watching this movie. It made me feel good about people, it made me feel good about life, and art, and myself. And I had a good time watching it. So to that end, this movie felt like this generation's "Searching for Bobby Fisher" (another movie that nobody really notices, but everybody who watches it enjoys, a movie for both kids and adults, a movie with "heart" even if it is a little contrived).
There are so few movies that a dad can watch with his kids (7 and 10) and both the dad and the kids can REALLY enjoy. If you think about it in that way, this movie belongs in the same conversation as Iron Giant, Toy Story, Searching for Bobby Fisher, Billy Eliot, The Power of One, The Water Horse, and some others I'm sure I can't think of right now. Not perfect movies, but a damn fine way to spend an afternoon.