There is COLOR film made during the Spanish civil war photographed by RUSSELL PALMER - a pro-Franco view. Edited and released by Palmer
as "DEFENDERS OF THE FAITH" circa 1940, shortly before his death.
ALBA website (Abraham Lincoln Brigade Archive) mentions this film: http://www.albavolunteer.org/2011/11/pro-franco-propaganda-in-the-us-russell-palmer/
It was available on DVD in the UK, issued 2006 by DD Home Entertainment D23876. The disc contained as "extras" a 52 minute
worn print of THE SPANISH EARTH and 20minutes of Palmer silent film with inter-title narrative.

Concerning THE SPANISH EARTH - mentioned above, the DVD release
which has BOTH the HEMINGWAY and ORSON WELLES narration was released
by SLINGSHOT, apparently no longer available.
There is a 5-dvd collection of Joris Ivens films which contains SPANISH EARTH. DOES ANYONE KINW if that release contains the Orson Wells narration, or only the Hemingway version?????
The titles for Spanish Earth indicate it was distributed by PROMETHEUS PICTURES, 1600 Broadway, NY. This address was was honeycombed office building, but also the home of TIMELY and GENERAL Record companies, and REEVES SOUND. Anyone know something of
PROMETHEUS PICTURES ???
Thanks!
Best wishes, Thomas.