Complex sentence: He is brought back to Washington to work at the Pentagonin the Office of the Secretary of Defense, David Brice (Gene Hackman, who) is aware that his general counsel Scott Pritchard (Will Patton) is an old friend of Farrell's.
Split into simpler sentences: He is brought back to Washington to work at the Office of the Secretary of Defense in the Pentagon. The Secretary of Defense David Brice (Gene Hackman) is aware that his general counsel Scott Pritchard (Will Patton) is an old friend of Farrell's.