Dune: Part Two (2024)
Near the beginning of the movie, Irulan mentions "This would not be the first time the Harkonnens have done his[Shaddam's] dirty work."
So, what else did the Harkonnens do at the behest of the Emperor (and for themselves), before the end of Dune Part I?
Speculation and "origin spoilers" are welcome. I have a guess myself, but I wanna be sure.
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