It's pretty much captured in the last three images/phrases in the TV trailer:

"Jennifer's Body."
[shot of actress unzipping her jacket, revealing her midriff]
{her voice} "You want it?"

This is bigtime eye-rolling territory.

(I'm not a Freudian theorist, but if I were, I could surmise from what is known about the movie to date that the main character is a symbol, the living representation of vagina dentata.)