That's Entertainment (1974)

That's Entertainment! (1974) Directed by Jack Haley Jr. and hosted by Frank Sinatra, Gene Kelly, Fred Astaire, Peter Lawford, Donald O'Connor, Debbie Reynolds, Mickey Rooney, Bing Crosby, James Stewart, Elizabeth Taylor, and Liza Minnelli. 134mins

That's Entertainment II (1976) Directed by Gene Kelly and hosted by Fred Astaire and 
Gene Kelly. 126mins

That's Entertainment III (1994) Directed by Bud Friedgen, Michael J. Sheridan and hosted by   Gene Kelly, June Allyson, Cyd Charisse, Lena Horne, Howard Keel, Ann Miller, Debbie Reynolds, Mickey Rooney, and Esther Williams.. 113mins

4-disc DVD Collection bought in 2004

4 hours of featurettes and documentaries on the bonus disc.
Theatrical Trailers