Sons of Anarchy actor Charlie Hunnam, who recently received backlash for being cast as a Mexican-American drug lord in the upcoming American Drug Lord, will star alongside Robert Pattinson in the The Lost City of Z. The first official trailer for the film has arrived, which finds Hunnam and Pattinson venturing into the Amazon and interacting with a primitive tribe of cannibals. 

James Gray is helming the film based on David Grann’s non-fiction best-seller The Lost City of ZScreen Crush reports. Hunnam plays the role of Colonel Percy Fawcett, a British explorer who traveled to South America and communed with several Amazonian tribes in the early 20th century. His most famous expedition delivered him to the unscathed depths of the Amazon in search of a lost city of gold. Spoiler alert: Fawcett never returned from this expedition. He is thought to have eventually been eaten by the indigenous tribe he encountered. 

The film stars Pattinson as British Army Corporal Henry Costin and Tom Holland as Percy's son Jack Fawcett. The roster also includes Sienna Miller as Fawcett's wife and Angus Macfayden as biologist James Murray.

Brad Pitt was originally supposed to star in the film that chronicles the mysterious journey which has left historians and writers dumbfounded as to what ultimately became of Fawcett. Grann published a long form story for The New Yorker on the subject in 2005, and several other authors have written about the subject as well.

The Lost City of Z doesn't have a set release date, but it is expected to come out some time in the fall.