The Sorcerer's Apprentice (2010)
Wai Ching Ho: Chinese Woman
Balthazar : [speaking in Cantonese] Your hair is beautiful.
Chinese Woman : Ahh, you speak Mandarin!
Balthazar : Ahh.
[Balthazar throws the Chinese Woman across the room with a spell, and she's revealed to have been Horvath in disguise]
Balthazar : That was Cantonese, Horvath. The Grimhold, where is it?
Horvath : An old associate of mine speaks impeccable Cantonese. He lived about 200 years ago. You know him. Sun Lok? Course you do. You locked him inside the Grimhold.
[Horvath shows Sun Lok's empty Grimhold]
Horvath : Oops. Opened it.