According to Collider:

“Tom Holland, the young actor who will be our next Spider Man, has now joined Lost City of Z, the hugely anticipated new film by James Gray, arguably one of the best of the modern American directors alongside David Fincher, Wes Anderson, P.T. Anderson, and Martin Scorsese. Holland’s role has not been disclosed, but he’s joining some exciting company with Charlie Hunnam, Robert Pattinson, andSienna Miller. These are all new actors for Gray, who has been working rather steadily with Joaquin Phoenix since The Yards, his magnificent second feature following his bracing, stylish debut, Little Odessa; his last film, The Immigrant, was one of the best films of 2014. Lost City of Z just recently started production in Belfast, Northern Ireland, and will next shoot for several weeks in Colombia.

As for Holland, it would seem that his ambition, not unlike co-star Pattinson, is to work with major, important directors as often as he appears in financially lucrative franchises such as the Marvel Cinematic Universe. Pattinson did quite well for himself by starring in the largely excruciatingTwilight films, and has since partnered with the master,David Cronenberg, on two separate occasions (Cosmopolis, Maps to the Stars),David Michôd on The Rover, and Werner Herzog on the upcoming Queen of the Desert, as well as lining up projects with Anton Corbijn, Harmony Korine, and the Safdie Brothers.

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Here’s the official synopsis for Lost City of Z:

LOST CITY OF Z follows Percy Fawcett, a conscripted soldier and born explorer who disappeared in the 1920s while searching for a mythical city in the Amazon jungles of Brazil that he believed he discovered on a prior expedition.”

The Playlist:

“Sierra/Affinity announced that production has started on James Gray‘s long-in-the-works “The Lost City Of Z.” Holland joins the cast of Charlie Hunnam, Sienna Miller, and Robert Pattinson, in the film based onDavid Grann‘s best-selling book about Percy Fawcett, a conscripted soldier and born explorer who disappeared in the 1920s while searching for a mythical city in the Amazon jungles of Brazil that he believed he discovered on a prior expedition. Production just started in Belfast, where it will shoot for the next five weeks, before heading to Colombia, where the film will lens through September and October.

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Basically, James Gray is going into the jungle for his next movie, and if that doesn’t get you excited, I don’t know what will. Paramount Pictures will release the film in the U.S., and maybe we’ll get a first look soon?”

The Hollywood Reporter:

“James Gray is directing the film based on his own script. Production has commenced on Aug. 19, with filming to be conducted in Belfast and Colombia throughout September and October.”

Deadline:

“Tom Holland, who will suit up as Peter Parker in Sony’s Spider-Man reboot being directed by Jon Watts, will take on another adventure first, joining the cast of Lost City Of Z, the big-screen adaptation of David Grann’s bestselling book. Charlie Hunnam, Sienna Miller and Robert Pattinson star in the pic, which follows conscripted soldier and born explorer Percy Fawcett (Hunnam) who disappeared in the 1920s while searching for a mythical city in the Amazon jungles of Brazil that he believed he discovered on a prior expedition. James Gray wrote and is directing the movie, which began shooting today in Belfast before moving to Colombia through the fall.”

IMDbPro was quick: