 The film features performances by Jimmy Giuffre; Thelonious Monk; Sonny Stitt; Anita O'Day; Dinah Washington; Gerry Mulligan; Chuck Berry; Chico Hamilton, with Eric Dolphy; and Louis Armstrong, with Jack Teagarden.Also appearing are Buck Clayton, Jo Jones, Armando Peraza, and Eli's Chosen Six, the Yale College student ensemble that included trombonist Roswell Rudd, shown driving around Newport in a convertible jalopy, playing Dixieland.As was scheduled in advance and announced in the program, the last performer Saturday night was Mahalia Jackson, who sang a one-hour program beginning at midnight, thus ushering in Sunday morning.