Footage shot by cyclists using helmet-mounted cameras is used in War on Britain's Roads, a BBC1 documentary, to purportedly show the fraught relationship between cyclists and other road users. But motoring and cycling groups say what is presented as everyday footage actually comes from a professionally-shot commercial film of cycle couriers staging a breakneck race through central London



• War on Britain's Roads is screened on BBC1 at 9pm on Wednesday 5 December