A 1970 historical drama film directed by Martin Ritt, starring Creator/SeanConnery, Creator/RichardHarris, and Samantha Eggar.

The movie tells the true story of a group of Irish-American coal miners in 19th-century Pennsylvania, led by "Black Jack" Kehoe (Connery), who form a secret society known as the Molly Maguires to fight exploitation by their oppressive employers, often by violent means. A PinkertonDetective named James [=McParlan=] (Harris) infiltrates the group to take them down from the inside. But he finds himself sympathizing more with the Mollies than with the company men who hired him.

The film takes a few small liberties with the plot, sacrificing strict historical accuracy for drama, but the setting is highly realistic and occasionally beautiful. It was a box-office flop, but well worth watching.

!! This movie provides examples of:
* BlackAndGrayMorality
* ConflictingLoyalty
* DirtyBusiness
* TheInfiltration
* JadeColoredGlasses
* KnightTemplar
* TheMole
* NoOneGetsLeftBehind: James going back for the Molly who is wounded during the gunfight.
* PayEvilUntoEvil
* PinkertonDetective
* SeeYouInHell
* SlidingScaleOfVisualsVersusDialogue: The first words are spoken 15 minutes into the movie. Jack Kehoe doesn't speak until 40 minutes in.
* StuffBlowingUp
* ThereAreNoGoodExecutives
* TokenRomance
* YourTerroristsAreOurFreedomFighters