Amazon is negotiating with CAA to distribute its clients’ drama The Lost City of Z from James Gray. The period adventure based on the David Grann book stars Charlie Hunnam, Tom Holland, Robert Pattinson and Sienna Miller. It’s being produced by Brad Pitt’s production company, Plan B, and also is slated as the closing-night picture of the New York Film Festival on October 15.

Set in the Amazon rainforest and based on a true story, the project is about the mystery surrounding British explorer Col. Percival Fawcett, who disappeared while searching for the lost city of Z. Sources said no deal is done, but they are working to close it.

CAA, who arranged the film’s financing, reps Gray, Pitt and Hunnam while Sierra/Affinity has been handling international sales.