Watch WEED for Free: How to Stream the Movie Online at 123Movies. . This 1971 color anti-drug use and abuse film was produced by Concept Films and directed by Brian Kellman for Encyclopedia Britannica. “Weed: The Story of Marijuana” combines time-lapse, montage, illustrations, animation (by Paul Fierlinger and emigre Pavel Vošický) and dramatized, documentary-style interviews to survey the evolving role of cannabis in U.S. society, with emphasis on the legal risks faced by young people. A unique score of experimental synthesizer music is provided by Tony Luisi on an EMS VCS 3 “Putney”