When the orderly is switching off the dorm room lights the light switches are already down when he approaches them.
Patty (the zombie in camouflage t-shirt) is shown with black, scabby crust all around her eyes and the ridge of her forehead. When she attacks the junkie in the pharmacy room, Patty's face is fleshy and bloody, no black crust. A few minutes later, she's back with the crusty black scabbiness.
During the opening sequence, there are no muzzle flashes when guns are being fired.
When the Beretta pistol is fired, the slide mechanism doesn't cycle to chamber a new round.
1st misspelled credit: Special Effects (Squuibs / Pyrotechnics) (should be Squibs)
2nd misspelled credit: Prdoction Assistants (should be Production)
3rd misspelled credit: Post Production Ausio Services (should be Audio)
4th misspelled credit: Mied And Re-Recorded By (should be Mixed)
5th misspelled credit: Company Lialson (should be Liaison)
In the 'Prologue' section, the caption says it is 1968, yet one of the soldiers is using a Beretta M92 pistol, 24 years before it was produced.
As an orderly switches the lights off in the mental institution's dorm rooms, the crew (with dolly) are reflected in the pane of glass in the door.
The film takes place in Pennsylvania, yet palm trees are visible in the first few scenes after the main credits.
Aside from observing that it's "something to do with the contagium", Emma's strange "pregnancy" is never explained.