Prism is a play by Terry Johnson, first performed in 2017, about the life of Oscar-winning cinematographer Jack Cardiff. 
Production.
The play made its world premiere at the Hampstead Theatre, London on 6 September 2017 where it ran until 14 October. The production was directed by Johnson and starred Robert Lindsay as Jack Cardiff and Claire Skinner as Nicola/Katie. It received four-starred reviews in "The Independent" and in "The Guardian", whose reviewer Michael Billington described Lindsay's performance as "riveting". 
The play is touring the UK from 3 October 2019, opening at the Birmingham Repertory Theatre, with Lindsay reprising the role of Jack Cardiff and Tara Fitzgerald as Nicola/Katie.