Sammi

Continuity mistake: In the scene where the remaining survivors are on Steve's boat and Michael stays because he's bitten, the sun changes positions. It goes from being morning to afternoon.

Sammi

Continuity mistake: After the spaghetti twister, Flint puts on his lab coat in the elevator and you can see he has his tuxedo shirt on. Then during the building montage, it's a blue shirt, then changes back to the tuxedo shirt when he turns on the car. Also, during the building, the design on the blue shirt disappears.

Sammi

Continuity mistake: When Derek gets the New Year's e-mail from Lisa and he starts closing out the pictures, it shows the screen where he closes out all but two pictures. Then it goes to his face and back to the computer where it's gone back to three or four pictures.

Sammi

Continuity mistake: When Anna is explaining what the symbol on the building means to Rose and Cybil, she hoists her bag of supplies over her shoulder. In the next shot, she's gone back to holding it in front of her. Then, over her shoulder again in the next shot.

Sammi

Continuity mistake: Near the end of the film, on the train ride out of the Hive, Rain is quite close to becoming undead. When she speaks, we notice her teeth are still "movie-star white". However, a few shots later, when she becomes a zombie, she sort of hisses where you can see it has taken what couldn't have been more than a few mere minutes for her teeth to become brown and discolored. (01:21:00)

Sammi