Looks like for the 200 year anniversary of the publishing of the book, NTLIVE will be doing a VERY wide screening of this, seemingly both casts, in late October. The play is fantastic, and the music is superb with MANY familiar sounds from riverrun as well as testing of stuff for use in the Olympics. I can't recommend one cast over the other, because Miller is better in both roles. :P
http://ntlive.nationaltheatre.org.uk...4-frankenstein
They've not done particularly wide screenings of this the last couple years, so don't miss this, if you've got any interest.