You will probably not see a 'smoking'-hot Kareena Kapoor in Heroine, at least not in the trailer. The shots of her smoking in the trailer have been duly censored before being cleared.
As for the film, when it is censored in September, all the scenes showing Kareena blowing smoke in air would be blurred out.
So here's the non-negotiable deal. If your hero or heroine in a film is a smoker, you've got reason to worry. If your protagonist is a chain-smoker then you have serious reason for concern. The Censor Board Of Film Certification (CBFC) has decided to blur all images of smoking from feature films.
As for trailers scenes showing smoking stand banned.
Confirming the censoring of Kareena's smoking scene as well as some love-making scenes and expletives in the trailer, J.P.Singh, CBFC's Regional Officer Mumbai said, "We've taken a decision some time back to show no smoking in trailers. This is because in a trailer there can be no disclaimer about smoking. In the full-length feature film, there has to be disclaimer about smoking at the beginning and after interval. Even then the smoking sequences are blurred."