Continuity mistake: Rosemary tries a third time to figure out the anagram with the Scrabble letters and comes up with "elf shot lame witch". She tries a fourth time and comes up with "how his hell fact me". She decides to give up and begins putting the letters away when she has an idea and pulls the book close to her and we see the wrong set of letters back on the floor "elf shot lame witch". (01:29:10)????
Continuity mistake: A scene is shown where the zombies smash the headlights of the truck that Ben arrived in. Later in the movie, when they attempt to refuel the truck, both headlights are fully intact and lit.