Cinderella

The film in question is the Betty Boop cartoon 'Cinderella' (alternatively known as 'Poor Cinderella'), produced by Fleischer Studios and distributed by Paramount Pictures. It was originally registered for copyright on August 3, 1934, under registration number MP4914. Under the Copyright Act of 1909, works published with notice between 1928 and 1963 required a renewal filing with the Us Copyright Office during the 28th year of the first term to extend protection to a second term. A search of the Stanford Copyright Renewal Database and the Library of Congress Catalog of Copyright Entries (CCE) shows no renewal record for this title. While many Betty Boop cartoons were renewed by Paramount or successor rights holders (like Republic or Melange/Viacom), this specific 1934 color 'Color Classic' entry did not have its copyright renewed. Consequently, it fell into the public domain in the United States upon the expiration of its initial 28-year term in 1962.