At the end of the movie, both Anton Walbrook and Fay Bainter are introduced as "two new RKO Radio Pictures personalities."
RKO bought the rights to the French version Michel Strogoff for $75,000, and specifically signed its star Anton Walbrook so that they could use some scenes from that movie. About 22 scenes were edited into the new version, including Siberia footage, battle footage, Tartar camps and the river on fire. The Hollywood Reporter mentioned that the new footage shot blended perfectly with the old footage.
The TCM print had an onscreen copyright statement which read "copyright 1945 by Ermo Productions." It suggests that associate producer Joseph N. Ermolieff obtained the rights to the movie and modified the title page. All other onscreen credits, however, agreed with those listed in the AFI Catalogue and the IMDb database.