Continuity mistake: When the apes are breaking into the command post, just as Breck says "Shoot them! Shoot them all!", the door is about half sliced down. A few shots later, the door is almost entirely sliced down with no time to do so. (01:13:25)
Continuity mistake: Several characters say that the train leaves from Shanghai. But the caption at the beginning says that the starting location is Peking (which is in fact where the real Trans-Siberian Express did depart from).
Continuity mistake: Pickett Smith has his shirt sleeves rolled up at the movie's beginning, then they're rolled down and buttoned then rolled back up before his canoe gets knocked over.