Imagine John Travolta in 'Grease' without a cigarette, Uma Thurman in 'Pulp Fiction' unable to puff away, or Brad Pitt in 'Fight Club' unable to light up after a bout. If the World Health Organisation has its way, movie stars won't be allowed to smoke on the big screen.The WHO has asked countries to place age restrictions on movies that show people smoking, citing smoking in films as one of the reasons teens start the habit."Film remains one of the last channels exposing millions of adolescents to smoking imagery without restriction," says Dr Douglas Bettcher, WHO's director for the department of prevention of non-communicable diseases.China has already put restrictions on movies that show "excessive smoking", says the organisation.But the Free Market Foundation has hit back, saying the WHO doesn't have legal power to dictate to countries what to do.Foundation director Temba Nolutshungu said: "It must be remembered that the WHO consists of unelected bureaucrats who are in no position to tell sovereign nations what they can and cannot do."But the global health organisation claims a third of the US teens who start smoking do so because it is portrayed as glamorous in movies.Former head of Tobacco Control, Derek Yach of the Vitality Foundation said: "There is merit in working with producers to limit how they portray smokers."For example, villains who smoke are seen as rebels best copied by young viewers."But he said the answer to reducing smoking lay in increasing excise on tobacco, "support enforcement on youth smoking and workplace bans on smoking"...