From NetFlix:

Powerful politico Stephen Collins (David Morrissey) is embroiled in a scandal when his
research assistant dies in a freak accident and his former campaign manager Cal McAffrey
(John Simm), now a reporter, realizes the incident may be linked to the death of a drug
dealer. As McAffrey digs deeper, he uncovers a dangerous connection between government
and big business in this exciting conspiracy thriller from the BBC.

This version is a 2-disc, 6-episode British TV series that predates the Hollywood film. Reviews for the film have been lukewarm, but they recommended this TV series that I got from NetFlix. Kathy and I could not wait to see each exciting installment. Acting is excellent. Details are well worked out. But pay attention in this conspiracy thriller. From time to time we would pause the DVD player and confer on whether we really understood what was happening. Even toward the end when things seem to be settling down you should hang on for more surprise.

I cannot recommend this British TV series highly enough.