The Original: Sort-of remake of Yojimbo and A Fistful of Dollars, with its turf war relocated to the American gangster genre where Tom Reagan (Gabriel Byrne) gets caught in the crossfire.

The plot was so convoluted the Coens wrote an entire new movie (Barton Fink) while they were perfect the tangled knot of cross and double-cross.

The Sequel: Twenty years on, Leo O'Bannon (Albert Finney) is dying, and wants to pass control of his gang to his son (Andrew Garfield).

Trouble is, old troubleshooter Tom is back in town and Leo's wife / Tom's ex Verna (Marcia Gay Harden) wants him dead.  Cue a new turf war.

Essential Scene:  Tom digs a shallow grave for prisoner Leo, Jr...but shoots his own henchman instead.

Essential Dialogue:  TOM - "I don't mind taking a beating - hell, I'd expect nothing less - but leave the goddamn hat."