Watch Parliament Funkadelic: One Nation Under a Groove Full Movie Free Online 123Movies. One Nation Under A Groove - P-Funk Documentary 2005 Known to its legions of fans simply as P-Funk, Parliament Funkadelic has had a profound impact on the development of contemporary music, aesthetics and culture. PARLIAMENT FUNKADELIC: One Nation Under a Groove chronicles the unique alchemy of the musical influences that fed into the band`s singular approach to music, documenting P-Funk`s continuing influence on today`s artists and musicians and featuring an in-depth look at the musical and entrepreneurial mastermind of its leader George Clinton.