Produced for the HBO Cable service, Act of Vengeance reenacts the 1969 murder of United Mine Workers leader Jock Yablonski. Yablonski (Charles Bronson) virtually writes his own death warrant when, after a "safe" mine collapses and 80 miners are killed, he rebels against the incumbent UMW boss Tony Boyle (Wilford Brimley) to campaign for presidency of the union. Boyle gets the word out that one less Yablonski in the world would be preferable. Yablonski is depicted as being fully aware of the danger he faces in challenging Boyle--and is supported in his decision by his courageous wife (Ellen Burstyn). Based on the book by Trevor Armbrister, Act of Vengeance premiered on April 20, 1986. ~ Hal Erickson, Rovi