Jim Henson’s The Dark Crystal, the puppet and creature heavy dark fantasy film captivated children when it was released 30 years ago, has become a cult classic even among adults. Now filmmakers J.M. Prater and Philip Mitchell are divining into the films production and history with a new documentary titled The Great Conjunction.

The documentary promises to dive into the legacy of the film and how Henson’s vision, brought to life with the help of Frank Oz and many others, has influenced a generation of fans.

The Great Conjunction will feature interviews with some of the creative team behind The Dark Crystal, as well as it fans.

Find out more about the documentary at its Facebook page.