"Revolution OS" (2001) is a documentary film directed by J.T.S. Moore that chronicles the history of the GNU and Linux movements and the emergence of the "open source" label. It features on-camera interviews with stallman, linus-torvalds, eric-raymond, bruce-perens, tim-oreilly, and other central figures.
The documentary covers the full arc from stallman's work at the mit-ai-lab and the announcement-of-gnu-project, through linus-torvalds's creation of Linux under gpl-v2, to the open-source-definition-schism and the founding of the open-source-initiative.
The film is particularly valuable as a primary source because it captures the principals speaking in their own words about the software-freedom-vs-open-source divide, the gnu-linux-naming controversy, and their differing views on the four-freedoms versus pragmatic open-source advocacy. Stallman's and Raymond's contrasting positions on stallman-vs-open-source-philosophical-core are presented in direct juxtaposition.
The documentary was released at the height of the dot-com boom, when Linux and open-source software were attracting major corporate investment. It captures the moment when stallman's original vision of free-software-definition was being both vindicated — the gnu-project's software was everywhere — and contested by the "open source" reframing.
Useful alongside free-as-in-freedom-williams, hackers-levy, cathedral-and-bazaar-raymond, and rebel-code-moody as an audio-visual primary source for the gpl-and-linux-era-1991-1998 and free-vs-open-source-schism-1998-2007 eras.