 The climatic sequence on top of the Smoking Gunn II billboard in  Times Square took ten days to shoot with New York traffic put to a  stand still and crowds of onlookers from all over the city including  tourists, gathered at night to watch the filming. All local TV news  stations, along with those from Europe and South America covered the  nightly shooting. The billboard itself was compared to that of the  Camel cigarettes sign of the 1950s with smoke puffing from it as a  main attraction on Broadway.