From the 1989 movie “TAP”, Written and Directed by Nick Castle.
The clip is the well known Challenge Scene featuring as they appeared dancing Arthur Duncan, Bunny Briggs, Jimmy Slyde, Steve Condos, Howard Nicholas, Howard Sandman Sims, Sammy Davis Jr. and Gregory Hines.
Also in the Challenge Scene were Pat Rico and Henry LeTang on Piano.
The DVD of TAP is available at http://www.taplegacystore.com