Authors Kelly Loudenberg and Makiko Wholey have written a new book, "Hollywood Vampires: Johnny Depp, Amber Heard, and the Celebrity Exploitation Machine."

Amber Heard's ex-girlfriend Bianca Butti provided hours of candid footage and speaks out as part of the new book 'Hollywood Vampires: Johnny Depp, Amber Heard, and the Celebrity Exploitation Machine,' out now.

Bianca Butti, the ex-girlfriend of Amber Heard, is showing support for the actress's claims of abuse during her marriage to Johnny Depp