Continuity mistake: Once Mulan has reached the top of the mountain with her buckets, the action moves to the Rouran troops assaulting a city. Gong Li's witch is womanhandling a bunch of soldiers who try to impale her. She grabs a spear a few inches away from its feathers, but in the next shots her hand is covered by them. (00:50:50)
Continuity mistake: The commanding officer (Donnie Yen) intervenes to stop the sword-pointing nonsense with his kung-fu badassery. He easily disarms the two litigious rookies and holds both their swords, but the pose he strikes is a different one in the two shots; Mulan's family heirloom is held alternatively low and high. (00:29:55)
Continuity mistake: Chen Honghui extends his hand to "the little man" to help 'him' back on his feet, but Mulan pulls her sword on him. The sword strap dangles freely in the shots by the side, but it is held up in the close-ups of the blade pointed at his neck. (00:29:45)
Continuity mistake: On the way to the conscription office, Cricket introduces himself, or tries to do so, but the token bully starts tormenting him by prodding his ear with a small straw. The straw has split ends which make noticeable the fact that the straw is turned at a different angle between shots; the second time he gets poked in particular, the smoother end is floppy and tilted downwards in the wide angle, straight and horizontal in the ear close-up. (00:29:25)
Continuity mistake: Mulan is having dinner with her family after her father has been drafted. During the scene depending on the camera angle her arms are folded, or her right arm is leaning against the table while she is holding chopsticks in midair. (00:20:55)
Continuity mistake: Mulan sheds her armor and is back to the battlefield, where she begins mowing down the bunch of Rourans. When she impales her last one, look at the shot when Yifei Liu is barely in frame; you can tell that there's just a tiny portion of her by her eye, but when the camera is focused in the next shot on the cool pose that sends everyone else hightailing, there's a lot of hair down that side of her face. (01:06:25)
Answer: Although it isn't said (in either this film or the animated original), she reports to a different camp than anyone else in her village. Otherwise, the men would not only recognize her physically but they would know beforehand that Hua Zhou never had a son so the ruse would never work. How she knows nobody from her village will be at that particular camp is never explained in either film.
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