Spanish Dub
I remember going to Spain many months ago (it was the second week of Easter) and they showed this film one evening on a major network and I only saw the first few seconds of the movie and what I noticed was that Penelope Cruz's lines didn't appear to be dubbed at all, as she was Spanish herself she spoke her lines in Spanish herself.
That was incredibly neat but was that true? All the other actors and actresses lines were dubbed, but Penelope Cruz's lines really didn't seem dubbed at all. If it was true, then I must say that it was a great decision for the filmmakers to let Penelope Cruz act in her own language on her language's version. :D