Charlie Hunnam
Credit: Axelle/Bauer-Griffin/FilmMagic

Prepare yourselves: the cast of the upcoming film The Lost City of Z just got a whole lot more handsome. The dashing (and Mr. Christian Grey that could've been) Charlie Hunnam has just signed on to play the lead in the James Gray-directed movie, where he will star opposite Sienna Miller and Robert Pattinson. And to make matters more exciting, Brad Pitt is one of the producers on the film.

The Lost City of Z is the big screen adaptation of David Grann’s bestseller of the same name, and tells the story of legendary British explorer Col. Percy Fawcett who ventured into the Amazon jungle in 1925 searching of a fabled civilization and never returned.

It was long rumored that Benedict Cumberbatch would front the adventure flick, but the actor had to drop out due to scheduling conflicts. Production is set to commence this summer, and the The Lost City of Z is slated to hit theaters next year. We can't wait to see Hunnam in action!