Graham King is developing a feature version of “Priceless: How I Went Undercover to Rescue the World’s Stolen Treasures,” the just-published memoir by Robert K. Wittman.

King’s GK Films snapped up rights late last week to the book, four days after it was published.

The tome, written with Philadelphia Inquirer reporter John Shiffman, recounts Wittman’s 20-year stint as the FBI’s resident art theft expert. It’s already on the New York Times Bestseller List.

No producer attachments have been announced. Wittman’s memoir recounts his 20-year stint as the FBI’s resident art theft expert, during which time he recovered more than $200 million in stolen images, including paintings by Rembrandt, Monet and Picasso, golden armor of an ancient Peruvian warrior king and the headdress Geronimo wore at his final pow-wow.

GK Films is already seeking a writer for the film adaptation, on which Wittman will be involved as a consultant.

Wittman, the founder of the FBI’s Art Crime Team, has been called the most famous art detective in the world.

GK Films also announced Tuesday that it had signed a three-year production agreement with Johnny Depp’s Infinitum Nihil shingle, continuing their relationship established in 2004. As part of the deal, GK Films will fully finance and co-produce film and TV projects with Infinitum Nihil.

GK Films, founded by King and partner Tim Headington, recently wrapped production on “The Tourist,” starring Depp and Angelina Jolie, and next shoots “Hugo Cabret,” directed by Martin Scorsese. Recently completed films include “The Town,” written and directed by Ben Affleck, as well as “The Rum Diary,” starring Depp and produced with Infinitum Nihil.

Wittman is represented by Gersh.

Depp’s company previously had a first-look deal at Warner Bros.