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- Rachel Getting Married (2008). Cannabis, oxycodone (Percocet).
- Rave - The Ultimate Party (2000). MDMA.
- Ray (2004). Heroin, cannabis.
- Red Angel, a.k.a. Akai tenshi (1966). Morphine.
- Reindeer Spotting – Escape from Santaland (2010). Subutex, amphetamine, heroin and cannabis.
- Rebound: The Legend of Earl "The Goat" Manigault (1996). Heroin.
- Reefer Madness (1936). Cannabis.
- Reefer Madness (2005 remake). Cannabis.
- Reeker (2005). MDMA.
- Amants réguliers, Les (2005). Cannabis.
- Remember the Daze (2007). Mushrooms, cannabis.
- Reno 911!: Miami (2007). Cocaine.
- Rent (2005). Heroin, cannabis.
- Repo! The Genetic Opera (2008). Fictional drug Zydrate, a powerful and highly-addictive painkiller and hallucinogenic. Maufactured by GeneCo, for people undergoing surgery. "Graverobbers" sell a cheap version of Zydrate on the black market extracted from the blood of the dead.
- Repo Man (1984). Cannabis, cocaine and amphetamines.
- Requiem for a Dream (2000). Heroin, cannabis, MDMA, cocaine, amphetamines, barbiturates.
- Return to Paradise (1998). Cannabis resin.
- Riding the bullet (2004) Cannabis.
- Rich Kids (1979). Cocaine.
- Righteous Kill (2009). Cocaine.
- Riot on Sunset Strip (1967). Marijuana and LSD.
- Rise of the Footsoldier (2007). Steroids, cannabis, cocaine, heroin, MDMA, Ketamine.
- Risky Business (1983). Cannabis.
- RoboCop (1987). Cocaine.
- RoboCop 2 (1990). Fictional drug Nuke.
- RocknRolla (2008). Cannabis, Cocaine, Heroin.
- Rockers (1978). Cannabis.
- Rolling (2007). MDMA, cannabis.
- Rolling Kansas (2003). Cannabis.
- Romeo + Juliet (1996). A substance that is similar to, or actually is MDMA, known as "Queen Mab."
- Royal Tenenbaums, The (2001). Cannabis, cocaine, mescaline.
- Rube in an Opium Joint (1904). Opium - Considered the oldest still existing motion picture to contain substance abuse.
- The Rules of Attraction (2002). Mushrooms, cocaine, LSD, methamphetamine, cannabis and MDMA.
- Run! Bitch Run! (2009). Cannabis, crack/cocaine.
- The Runaways (2010). Cocaine, MDMA, Quaaludes
- Running with Scissors (2006). Prescription medications.
- The Rum Diary (2011). LSD (Lysergic acid diethylamide).
- Rush (1991). Heroin, tobacco, amphetamines, cannabis, cocaine.
Read more about this topic: List Of Drug Films