There is some irony in the opening narration about marijuana use by young people, delivered in a somewhat scolding tone, being done by Robert Mitchum. In 1948, Mitchum attended a party that was raided by the Los Angeles police where he was found to be smoking marijuana. His career was briefly derailed by the bad publicity, and he ended up serving 50 days of a 60-day jail sentence the following year. His career quickly recovered, and his next film, Rachel and the Stranger (1948), was a box office hit.
Robert Mitchum states the federal penalty for possession of marijuana is 2 years, while selling it carries a maximum of 40 years.