Interesting Anti-Drug Commercial (Talk To Frank)

During my research I have noticed a large difference in the way America present cannabis to the way it is presented in the UK. Anti-Drug adverts from America generaly display the light affects of cannabis over the user, such as mild hullucinations like a talking dog, but within the UK it is portrayed as much more dangerous. This advert illustrates the affect it has upon the brain using surrealist elements to enforce scare tactics.

I beleive adverts like this have a very large impact upon it's audience, but does force against using drugs actualy work?

This is the american anti-drug advert and you can clearly see the difference in their tactis to give information on the drug.