Jodorowsky's Dune Uncovered
Scenes 44-46 : Departing Caladan
During a rain storm, the last of the cargo is loaded into the Guild ship, and soldiers say goodbye to their families and drink the falling rain.
Leto, Jessica, Paul, Halleck, Hawatt, Idaho and Yueh watch the huge doors to Castle Caladan being closed, and Leto locks them with an iron key. He places the key in a small bag which he hangs around Jessica's neck.
The Guild ship leaves Caladan, and becomes smaller and smaller until it disappears in the vastness of space.
In the Moebius storyboards the Atreides departed Caladan earlier, so these scenes were either dropped or combined with previous scenes.