Revealing mistake: Just after Li Mu Bai tells Shu Lien that they are very close to her headquarters and that she should check in, we are treated to two 'time pass' shots of forest. The second of these features some very obvious power or telephone lines in the lower right corner of the screen. (01:22:40)
Li Mu Bai: She should come to Wudan and become a disciple.
Yu Shu Lien: But Wudan does not accept women.
Li Mu Bai: For her, they might make an exception. If not, I'm afraid she'll become a poisoned dragon.