Dear Michael Ferguson,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located the motion picture Miss Lena Horne Christens the USS George Washington Carver, Richmond, California (National Archives ID 77813/Local ID 428-NPC-6265). For more information about these records, please contact the National Archives at College Park - Motion Pictures (RDSM) at firstname.lastname@example.org.
An internet search also returns web pages that might be of interest to you as well as these articles, Christening, Launching, and Commissioning of U.S. Navy Ships, from Naval History and Heritage Command, and African-Americans in the U.S. Merchant Marine and U.S. Maritime Service.
In addition, please see this related question What are the names of the all the women who christened the Liberty ships in richmond ca.
We hope this is helpful. Best of luck with your research!
(As a public health precaution due to COVID-19, all National Archives research rooms nationwide, including those at Presidential Libraries, are closed to the public until further notice. Please check NARA’s web page about COVID-19 updates for the latest information. We apologize for this inconvenience and appreciate your understanding and patience).