The March of Time (1930)

Unfinished pre-Code era film consisting of three sections with past performers from the stage and the vaudeville circuit, then-present-day performers and up-and-coming performers. Musical excerpts were later used in Broadway to Hollywood (1933), Nertsery Rhymes (1933), and Roast-Beef and Movies (1934). "The Lock Step" was later used in That's Entertainment! III (1994)