Gerry Gibson and Philip Sheldon were buried by a rock fall while working 2, 600ft (800m) underground at Kellingley Colliery in September 2011.

BBC: Gerry Gibson pit death inquest: Miners' rescue attempts

The two-woman show, which opens this fall in London, is about a prisoner, a former member of a Weather Underground-type group, and her parole officer.

WSJ: Bari Weiss: David Mamet's Coming Out Party