We’ve been hearing about Joel increasingly over the past few months, and now it looks like big brother Nash Edgerton is getting some time in the spotlight as well. Entertainment Weekly reports the Australian actor will be joining little brother Joel Edgerton, Jessica Chastain, Edgar Ramirez, Kyle Chandler, Chris Pratt and more in Kathryn Bigelow’s untitled thriller which had been working under the title “Kill Bin Laden.” British actress Jennifer Ehle – who has long been rumored – has now been confirmed as well. EW also lists formerly rumored named including Idris Elba and Tom Hardy, but those are still on shakier ground, especially given how large the cast already is.

Edgerton will play a Navy SEAL in the Mark Boal-scripted film about the elimination of the most wanted terrorist in the world, while Ehle’s part is unknown. Perhaps she will be taking over for Rooney Mara, who passed on the role of a female journalist embedded with the soldiers. Chastain will play a military analyst while the younger Edgerton, Pratt and Jason Clarke are also SEALs. Filming is imminent with a release date of December 19 already in place.

Best known thus far for his stunt work on films like “The Matrix” and the “Star Wars” sequels, Edgerton also runs Blue Tongue Films with his brother and other Australian filmmakers, which produced 2010′s starmaker “Animal Kingdom” and this year’s Sundance entry “Wish You Were Here.”