I remember watching a Historical European Martial Arts (HEMA) video about Capo Fero while singing some Skallagrim videos, and immediately I went "hey wait a minute that sounds familiar" and racked my brain trying to figure out who's voice I was hearing in my head saying "capo Fero"
Of course once I realized it, I had to watch the entire movie, because one does not simply watch clips of The Princess Bride...
Anyway, that led me down a huge long road of videos all about sword fighting in movies and how realistic (or laughably unrealistic) they can be.
I was actually surprised to see halfswording in Season of the Witch when someone fights Ron perlman. That movie isn't amazing cinema, but it's fun and doesn't deserve it's 10% RT score. It should be at least 15%.