Kevin Fischer: What's wrong?
Wendy Christensen: It's nothing. It's just that I'm going to be worrying about you every second while you're gone.
Kevin Fischer: Why would you worry about me? We don't even like each other, remember?
In the scene where Ashley says that they've got CDs in the tanning salon you can see Ashlyn keeping a cream tube on the table with her right hand. In the next shot you see her continuing the same action with the left hand.
The opening sequence is a foreshadow to a few of the deaths in the movie. The pinball-like game shows a picture of a woman with nails in her face (Erin), twin "electric sisters" (Ashley & Ashlyn), and daggers/swords (Lewis).