Brad Caleb Kane has signed on to write a feature-length adaptation of Elizabeth Kostova's novel "The Historian" for Sony, Variety.com reports. Kane, who has done stints as a vocalist (Aladdin) and an actor (Starship Troopers, an episode of "Buffy the Vampire Slayer"), has been making a name for himself as a screenwriter with These City Walls, a script that has been making the rounds in Hollywood. Kostova's novel involves a teenage girl delving into the work of her father: discovering the truth about Vlad the Impaler. Said producer Douglas Wick regarding their choice of screenwriter: "One of the things we've been looking for is someone who could not only capture the visceral, sexy part of the story, but who also has the talent to make it credible."