The Wages of Sin (1938)
Florence Jones: There go your reefer smokers. Round and round...
Florence Jones: That was Marihuana you were smoking! It's worse than cocaine! See those two punks over there, Marge? They were high a minute ago. Now they're getting low. Soon they'll be mean, ready to commit murder. You Marihuana's called the murder weed. Don't you ever touch it again.