I wouldn't recommend the full movie as an intro to this concept, it goes way too far out into fantasy to establish a stable foundation for the theory.
I'm much more interested in the Scientific work and Geologic evidence of the plasma physicists and electric-Geologists working on the EU/Plasma Universe Theory. Particularly the work of Donald Scott, Wal Thornhill, Gerald Pollock, etc. And Michael Steinbacher and Andy Hall (independent researchers showing concrete cases of electric geology.)
Andy Hall, recent presentation on the evidence for Electric Geology.
I also highly recommend checking out the late Michael Steinbacher's youtube channel for fans of Geology.