Conscience
A voice inside oneself that acts as a sort of moral compass
Correctional Facility
A jail/prison
Rehabilitate
To correct someone's misbehavior/addiction/illness
Revels
To celebrate in a loud and energetic fashion
"The Tempest"
The play the prisoners are doing in the film. It was written by Shakespeare in the early 1600's and first performed in November of 1611.
Troupe
A group of entertainers (in the case of the film, actors)
Warden
The leader of a prison
Workshop
(In the context of the film) A space in which actors work to refine their craft before the performance