Good movie. Really interesting adaption of the "vagina dentada" myth. I love the underlying themes that explore: abstinence only education, promise rings, sexuality, Christianity, purity, stereotypes, womens sexuality, asexuality and more.
Though, the characters in the film represent extremes on one hand you have your bible tottin', promise ring wielding, children of God and on the other you have your drug abusing, violent, goth, promiscuous sluts (as Jordin Sparks would put it). Overall it was great, which is strange because I'm not an avid fan of castration. Check it out.

It killed at Sundance: