Great ad Jeff, Lon was going to, and wanted to play both rolls, but time issues in make-up, and other practicality's, mostly financial stopped it happening. It's a film I would love to see all the footage that was cut, re-instated... one does hope it will surface from some source, but I fear it's gone for ever...
There were also the technical aspects such as the split screen photography, that was an issue and the use of suitable doubles also came into play. As it was, the final "battle" scenes between the monster and wolf man were all done by stunt doubles, with closeup inserts of Lugosi and Chaney snarling at each other edited in.
Paul, what cut footage are you referring to? Sequences/scenes from the Lugosi/Chaney version that were edited out of the first cut?
When you think about all of the edited scenes from these early films, or, the makeup tests that were shot of Lugosi as the monster for FRANKENSTEIN, or all of the deleted footage from the first cut of 1925's PHANTOM OF THE OPERA (all of it most likely gone forever), it does make one feel a bit
. Agreed.