Continuity mistake: When Nicole breaks the glowstick and splashes the liquid on the killer's mask, she starts to run. In the next shot of the killer, there is no liquid on the mask, yet it reappears in subsequent shots. (01:03:20)
Continuity mistake: When Nicole breaks the glowstick, she swipes it horizontally across the killer's mask, but it appears on the mask in vertical stripes. (01:03:20)