Composer Carter Burwell says "Macbeth" will still feel like a Coen Brothers movie, even without one brother on board. “It’s a little different, even just the conversations I’ve had,” Burwell said.

Together, the Coen Brothers have covered a lot of ground as collaborators and co-directors, from stark neo noir (“Blood Simple”) to bluegrass-tinged whimsy (“O Brother, Where Art Thou?”) to ...