"You cannot hesitate." Focus Features has released one final trailer for Cory Finley's devilishly dark comedy Thoroughbreds, opening in select theaters starting March 9th in just a few weeks. Two of the best young actresses today, Anya Taylor-Joy and Olivia Cooke, play upper-class teen girls in suburban Connecticut who rekindle their unlikely friendship after years of growing apart. When they get together again, they make plans to take out their stepfather - which they both hate. One of the big quotes on the poster describes this as "American Psycho meets Heathers," which should make you very interested, or not. The full cast includes Paul Sparks, Francie Swift, and Kaili Vernoff. This does look damn good, and it did play at a bunch of festivals, so it may be worth checking out whenever it shows up at an art house theater near you. Watch out. Here's the final official trailer (+ poster) for Cory Finley's Thoroughbreds,...