Originally posted by -Tired Hiker-
I think it's because the average movie watching demographic has never tried heroin, nor do they ever intend to do so. Heroin is taboo to most of us, it's something that's out of the question, at least to me.
You see, a lot of movie goers know that smoking weed is harmless, therefore there is no dramatic element to that. Cocaine can be dangerous, but for the most part it is really fun and too many people have tried it so they wouldn't be intrigued by it's use in a film. Heroin, however, has all the dramatic elements perfect for characters and subplots etc., because of it's mystery. Though I do agree, it is way over used, even in t.v. with LOST and stuff like that.
^ Yeah, that's a pretty logical explanation.
What get's me is why they feel the need to actually walk you through the steps of actually doing it. It's like a handbook on how to become a junkie or something.