I enjoyed this movie so much that I went to see it in the movies twice (which is rare for me). It is even interesting the second time around. There are some really great subtleties just like in "The Sixth Sense" and "Unbreakable." This movie has lots of layers to unwrap to understand what is the real truth. I think Tom Cruise does a marvelous job and the camera shots are great too. However, it is the writing that makes the movie. The title is interesting itself, to be able to taste the sky, almost like Jimi Hendrix's legendary lyric "Excuse me while I kiss the sky." However the name supposedly comes from a piece of art work, but I am not knowledgeable in that realm. Enjoy the ride, it is a unique film. It's short coming is that it does not really go into any deep thoughts or feelings.