A few things...

I enjoyed this movie, probably more so because I find Taissa Farmiga to have a somewhat seductive demeanour when she acts. But I will say this, I hate trailers. They just shouldn't give you a hint of any key twists which occur, such as in the trailer for 'Anna', John (Mark Strong) says "she set me up". No need whatsoever.

Anyway, I did enjoy it a fair bit!