It's mostly English!
I have become so keen on Japanese cinema (esp. Shunji Iwai), and am learning Japanese, so I try to watch as much as possible. I was shocked to find so much English dialogue! I mean, most Japanese and far Eastern cult classics (Ichi The Killer, Lady Vengeance, Last Life In The Universe, etc) feature some English dialogue, but I was dumbfounded by the massive amount of English, esp. scenese like the American born dude with the long hair being unable to understand Mandarin, and the Mandarin dude unable to understand Japanese and the... I'm confused, but basically, this film is a myriad of correlatins of languages, and I'm certain it wasn't intended for Englsh speaking audiences. The scene where Ageha is getting the tattoo is entirely fluent English, which was so strange to watch I think.
Getting the bus saves time but it sure don't lengthen yr life! - Harvey Pekar