The unidentified two-strip Technicolor sequences used to illustrate "The Ziegfeld Follies" were lifted out of Glorifying the American Girl (1929). The star of this film, also unidentified although frequently shown in the clips, was 'Mary Eaton', sister of interviewee Doris Eaton.
A two-strip technicolor clip of Dennis King and Jeanette MacDonald from The Vagabond King (q.v.) is used to illustrate the pre-Ziegfeld shows seen on Broadway before the turn of the century. The Vagabond King was not performed on Broadway until 1925, and the film was made four years later (1929) and released in 1930.