The "Spicediver" Fan Edit (Dune: The Alternative Edition Redux)
It is roughly 177 minutes long and adds nearly 40 minutes of footage. It features a new 10-minute prologue narrated by a male voice over still paintings, replacing Princess Irulan's original intro.
Most viewers consider this an interesting curiosity but a "painful experience" that over-explains the plot.
This version was prepared for television in 1988 without Lynch’s involvement, leading him to remove his name from the credits.