It was SUCH a long time ago, but have you seen that movie they showed us in health class in preschool? It has that white kid who wants to start smoking and famous cartoon characters come in to convince him not to start? Like the smurfs, alf (REMEMBER ALF? LOL)... etc. (probably made in the 80's or 90's)
NEVER MIND I FOUND IT!!! :]] YAY!!!

http://www.imdb.com/title/tt0154129/