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- Hair (1978). Cannabis and LSD.
- Hall Pass (film) (2011). Marijuana (Brownies)
- Half Baked (1998). Cannabis, cocaine, crack and heroin.
- Half Nelson (2006). Cocaine and crack cocaine.
- Halloween (1978). Marijuana.
- The Hangover (2009). GHB, rohypnol.
- Hannibal (2001). Chloroform, Morphine (and unknown sedatives).
- Hard Ticket to Hawaii (1987). Marijuana.
- Hardbodies (1984). Marijuana and cocaine.
- Hare Rama Hare Krishna (1971). Cannabis resin.
- Harold & Kumar Go to White Castle (2004). Cannabis, MDMA, Cocaine.
- Harold & Kumar Escape from Guantanamo Bay (2008). Cannabis, and psilocybin mushrooms.
- Harold & Kumar: A Very Harold & Kumar Christmas (2011). cannabis, psilocybin extract, Crack, Ecstasy, Cocaine
- Harry Brown (2009). Cannabis, Crack/Cocaine, Heroin.
- Harsh Times (2006). Cannabis.
- The Hasher's Delirium, a.k.a. Le songe d'un garçon de café (1910). Absinthe.
- Hobo With A Shotgun (2011). Cocaine.
- Horrible Bosses (2011). MDMA, Cocaine.
- Howard Marks. Mr Nice (2010). Cannabis, LSD, Opium.
- Harvard Man (2001). Cannabis, LSD.
- Havoc (2005). Cocaine, Crack.
- Head (1968). Cannabis, LSD.
- Head, Heart and Balls.. or Why I Gave Up Smoking Pot (2007). Marijuana
- High Art (1998). Heroin.
- High School High (1996). Marijuana.
- Hollywood High (2003).
- Holy Rollers (2010). MDMA
- El Hombre de los Hongos, a.k.a. The Mushroom Man (1976). Psychedelic mushrooms.
- Homegrown (1998). Cannabis.
- The Horde (2010). Cocaine.
- Hot Rod (2007). LSD.
- Hot Tub Time Machine (2010). Cannabis, psilocybin mushrooms, Cocaine.
- How High (2001). Cannabis.
- Human Traffic (1999). Cannabis, cocaine and MDMA.
- Human Wreckage (1923).
- Hunt to Kill (2010). Methamphetamine.
- Humboldt County (2008). Cannabis.
- Hurlyburly (1998). Cannabis, cocaine and diazepam.
- Hustle & Flow (2005). Cannabis.
Read more about this topic: List Of Drug Films