In FOTR, the scene where Gandalf goes to seek Saruman, Christopher Lee definitely pronounces it “Eye-zen-gard.” It sounds like the same pronunciation from Tolkien’s reading “The March of the Ents,” as Snowdog mentions.
I dislike that song “They’re taking the hobbits to Isengard,” and it’s been a while since I’ve watched TTT. I can’t remember how Orlando Bloom says it.
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Fenris Penguin
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