Last year it was announced that Community creator Dan Harmon would be touring his live show/podcast Harmontown around the country then turning it into a documentary by director Neil Berkeley, and a new trailer was just released. This sneak peek features stars like Jack Black, Ben Stiller, Gillian Jacobs, Chris Hardwick, and John Oliver attempting to explain who exactly Harmon is and includes some special appearances by Chevy Chase (in the form of blog screen caps and footage of the now infamous voicemail message). Harmontown debuts in select theaters as well as VOD on October 3rd.