Today, Reefer Madness is considered to be a cult classic,
and one of the best examples of a midnight movie. Its fans
enjoy the film for the same unintentionally campy production
values that made it a hit in the 1970s. Sean Abley's stage
adaptation, Reefer Madness, ran for a year in Chicago in 1992.
The film was spoofed in this musical of the same name, which
was later turned into a made-for-television film in 2005, and
featured major actors such as Alan Cumming, Kristen Bell,
Christian Campbell, and Ana Gasteyer.
You can view the movie's opening musical number here: