The brother Coen won the top prize at the Directors Guild for No Country For Old Men.
Statistically the DGA award matches up with the Best Picture Oscar.
2006: Martin Scorcese, The Departed (director and picture won)
2005: Ang Lee, Brokeback Mountain (Lee won director; Crash won picture)
2004: Clint Eastwood, Million Dollar Baby (director and picture won)
2003: Peter Jackson, The Lord of the Rings: ROTK (director and picture won)
2002: Rob Marshall, Chicago (Roman Polanski won director; won picture)
2001: Ron Howard, A Beautiful Mind (director and picture won)
2000: Ang Lee, Crouching Tiger, Hidden Dragon (neither won)