black cigarettes peaky blinders Many people think the smoked in were real tobacco cigarettes, but they were actually herbal cigarettes. During filming, Cillian Murphy reportedly smoked thousands of them. Actor Cillian Murphy, who is

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They're the same type they smoke in theatre productions." The British actress added: "I used to go to plays for years and wonder why they had a [cannabis joint] on the go during a play and how they could remember their lines

The actress laughed: Let me show you my lungs! before going on to share the horrifying truth about her co-stars journey on the show

Now Polly Gray star Helen McCrory has revealed the shocking truth about how many cigarettes the cast get through during filming