Five cast in 'Greatest'

Pierce Brosnan's Irish DreamTime producing the drama

Carey Mulligan and Michael Shannon have joined the cast of the indie drama "The Greatest," being co-produced under Pierce Brosnan's Irish DreamTime Prods. shingle and Silverwood Films.

Also on board are Aaron Johnson, Zoe Kravitz and Johnny Simmons.

The film centers on a young girl (Mulligan) who throws a family into chaos as they try to get over the loss of their teenage son, Bennett (Johnson). Shannon plays a friend of Bennett's; Simmons plays Bennett's brother; and Kravitz plays his friend.

"Greatest" marks the directorial debut of scribe Shana Feste ("Jonah"), who also penned the screenplay.

CAA and Endeavor co-rep the project on all North American rights, with Kimmel International handling international.

Mulligan's credits includes the upcoming drama "Brothers" as well as "Pride and Prejudice." She is repped by CAA and Julian Belfrage & Associates.

Shannon's credits include "Before the Devil Knows Your Dead," "Shotgun Stories" and the upcoming indie "Revolutionary Road." CAA and Spellman Paul Entertainment rep him.

Simmons, repped by Endeavor and Untitled Entertainment, recently wrapped the horror comedy "Jennifer's Body" and will next be seen in "The Spirit."

Johnson, a regular on the British drama "Nearly Famous," appears in the upcoming Nickelodeon Movies comedy "Angus, Thongs and Perfect Snogging." He is repped by WMA, Principal Entertainment and Hamilton Hodell in the U.K.

Credits for Kravitz, the daughter of rocker Lenny Kravitz and Lisa Bonet, include "The Brave One" and "No Reservations." She is repped by Paradigm.