rare footage! nice youtube find. apparently this is part of a recently discovered 40-minute film of a Jazz at the Philharmonic tour recorded in Dusseldorf Germany.
a rm version can be found at this site, the start includes Oscar Peterson replacing Wynton Kelly at the piano.
http://tostud2.free.fr/pageindex.htmla companion clip from the same film, posted here previously, mentions in the notes that Miles Davis was sick that day.
http://www.youtube.com/watch?v=hBwrv6RtvtA