Jodorowsky's Dune Uncovered
Scene 34 : Jessica meets Leto
In a flashback scene (within the "History of Humanity" flashback itself!) Jessica remembers being brought to Castle Caladan by the Reverend Mother as a gift to Leto from the Emperor.
In the Moebius storyboards Leto removes, using his sword, just Jessica's hat and the veil covering her face. In the script, however, Leto removes all of Jessica's clothing!
It is love at first sight between Leto and Jessica, but Leto brings his sword down, with force, towards Jessica, stopping just short of her neck.
The Moebius boards finish with Halleck playing a tune on his baliset, but the script continues with its more NSFW theme, and ends with the Duke caressing Jessica's entire naked body.
Another difference between the scripts and storyboards is that the flashback begins based the Reverend Mother being in the castle, whereas in the storyboard Jessica remember the first time she saw the Reverend Mother; which we will see next time in Jodorowsky's Dune - Uncovered