Can cigarette warnings counterbalance effects of smoking scenes in movies?

Explores whether Canadian cigarette warning labels can decrease the impact of the smoking in movies. Findings show that without a warning label, youth had positive smoking-related stereotypes to smoking in the movies. However, this did not occur if youth first viewed a picture and text warning.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?orig_db=PubMed&db=PubMed&cmd=Search&defaultField=Title&term=Psychological+reports%5BJour%5D+AND+2007%5Bpdat%5D+AND++cigarette+warnings

Comment: Proof that warning labels especially, Canadian warning labels are an effective strategy to deter smokers and youth from smoking.