Actually I saw the movie, its about Hayley Stark torturing Jeff Kohlver :

[![enter image description here][1]][1]

but here in the poster, it shows Hayley Stark standing in trap instead of Jeff Kohlver:

[![enter image description here][2]][2]

Why The Hard Candy poster made in reverse to the plot ?  


  [1]: https://i.sstatic.net/2tsjj.jpg
  [2]: https://i.sstatic.net/esmiY.jpg