Harmony Unleashed: The Beginning is an American-Japanese science fantasy action comedy film directed by Koichi Sakamoto and written by Aaron Montalvo, Zak Penn, Dave Polsky and George Doty IV from a story by Montalvo. (One of the original writers of Evolution, Chris Savino, is uncredited amid sexual harassment accusations) While it's part of the Harmony Unleashed Saga, it is a retelling of the YouTube Poop: The Series episode, Harmony Unleashed and the film, Harmony Unleashed: Evolution as footage is used and remastered with additional footage made from Montalvo.
The film will be released in North American theatres for a release phase of two weeks starting on June 18. 2021, with a streaming release on MontalVue after its limited theatrical release. Outside of NorAm, the film will be released on Netflix as a Netflix original. It is produced by Lionsgate, eOne Studios, Hollowfox Filmworks and HyperObject Industries and Toei Company Ltd. This marks the first film with Lionsgate's involvement since The Harmony Unleashed Saga: Big Brother Best Band of Battling Brothers.
Amid both the special and telefilm being rated TV-MA, The film is rated R for language and violence.