The Boondock Saints

1999 action/thriller written & directed by Troy Duffy. Hot on the trail of the assailants behind the brutal murder of Russian thugs, FBI agent Paul Smecker (Willem Dafoe) is surprised to discover the killers are Irish twin brothers (Sean Patrick Flanery and Norman Reedus) who believe they've been chosen to rid the world of evil. But as they unleash more brutality on the criminals of Boston's underworld, Smecker finds himself torn between busting the vigilantes & joining them. Directed by.Cast includes Willem Dafoe, Sean Patrick Flanery, Norman Reedus, David Della Rocco, Billy Connolly & more.