Denzel Washington's new crime film Safe House proved a little too thrilling for a neighbourhood in Cape Town that has experienced gang violence.
Callers to talk radio said they feared gang fights had returned to the township when they heard the sounds of automatic gunfire overnight.
Denis Lillie, head of the Cape Film Commission, said the movie's producers had been authorised to film a sequence involving car chases and the firing of blanks, and had informed residents in the immediate neighbourhood.
But he admitted the sound carried further than expected.
Lillie said the Cape Town community is getting "used to the fact that people want to film here".
The crime thriller, about a team of villains who destroy a CIA-run safe house, also stars Ryan Reynolds and Irish actor Brendan Gleeson.