About the film
The Impossible Itself is a 2010 documentary film produced and directed by Jacob Adams, covering the 1957 San Francisco Actor's Workshop production of the Samuel Beckett stage play Waiting For Godot that was taken to San Quentin Prison and performed before its inmates, with an examination of an earlier incarnation of Godot as performed by inmates at the Luttringhausen Prison in Germany in 1953.
From the film's Wikipedia article (CC BY-SA 4.0).