Commenting on the debacle, a council spokesperson explained: “In August we were approached by the Fortitude production team to use the Town Hall as a shooting location, depicting a Second World War German intelligence HQ.
"The proposal was agreed with several conditions, including that they consulted with nearby residents and that Nazi-era flags and symbols were not publicly visible.
“We were very disappointed when the shoot was abruptly brought forward from October to September 15, preventing the level of consultation previously discussed, and letters were sent to the community by the location team stating explicitly that Nazi symbols would be highly visible during the shoot.
"Because of these significant changes that did not honour our agreed conditions, and given the high level of sensitivity to far-right iconography, we felt we had no other choice than to refuse permission.”
Filming eventually went ahead at venues in Greenwich and Luton. The Times reported that an unverified post featured a sign said to have been put up by producers in Greenwich telling members of the public: “We understand that there may be some sensitive imagery; however, we hope to keep the film as historically accurate as possible.”