Humans are visual creatures by nature. If we weren't, the advertising business wouldn't have lasted very long. When prescription drugs started being advertised on television in 1997, sales of brand-name drugs skyrocketed. Similarly, when cigarette ads disappeared, sales declined. One reason for this is the visual stimulation of seeing someone smoke [source: Science News]. For someone who is cutting back or kicking the habit entirely, the visual image of smoke is a powerful trigger. It looks good in the way a glass of water looks good to a thirsty person. It also doesn't help that older movies featured mostly filterless cigarettes -- the plume of smoke that is exhaled is positively luxuriant compared to filtered smokes. Smoking can look sexy, masculine, or even nostalgic. But mostly, to a smoker, it looks tempting, still a prime influence in getting people to smoke [source: National Cancer Institute]. Fifty-four percent of movies released in 2009 still featured smokers [source: Newsweek]. Even if the smoker is a villain (Cruella DaVille), the act of smoking can still trigger longing in anyone who has known and enjoyed the sensation of smoking.