Watch Deadheads for Free: How to Stream the Movie Online at 123Movies. . Covering 10 years, this 60 minute art documentary takes an inside look at the artisans, magicians, musicians, and lunatics that make up this cult of devotees, deadicated to a band that originated in 1965. Why these fans leave their schools, families and jobs to be part of these ritualistic tribal celebrations of dance, drugs and community, is a 20th century American cultural phenomenon captured here in this time capsuled video tape.