"A Doctor Who story involving street art, set in Bristol – no inspiration necessary, so just a case of picking up on the same influences as the episode itself. A Banksy-style stencil of the Doctor was just an obvious visual and it's always nice to be able to sum a story up in a single image."
The full poster can be viewed below.
Manning's previous posters for each episode of the series can also be found here.
Flatline airs at 8:25pm, Saturday 18th October on BBC One.
[Source: Radio Times]