L-R Director Saul Dibb with cast in Bristol’s Castle Park; Sgnt Tracy Holloway (Natalie Klamar) & Sergei Skripal (Wayne Swann). Credit BBC / Dancing Ledge / James Pardon

L-R Director Saul Dibb with cast in Bristol’s Castle Park; Sgnt Tracy Holloway (Natalie Klamar) & Sergei Skripal (Wayne Swann). Credit BBC / Dancing Ledge / James Pardon