Continuity mistake: Depending on the version, in the final confrontation between the Emperor and the Harkonnen, and Paul and the Fremen, you can see Thufir Hawat standing in the crowd of the imperial side. After the battle between Paul and Sting he has suddenly disappeared. This is due to there being different, much longer versions of the same film. There is a 120 minute version, 180 and 190 minutes, and apparently in Singapore you can buy a 240 minute version. However, in the long versions the stains on Thufir's lips and Paul's totally blue eyes do not appear in the extra scenes: now you see it, now you don't.
Dune (1984)
Ending / spoiler
Directed by: David Lynch
Starring: Max von Sydow, Patrick Stewart, Brad Dourif, Kyle MacLachlan, Jose Ferrer, Francesca Annis, Sting, Leonardo Cimino
Alia kills the Baron Harkonnen with a poisoned Gom Jabbar. The Fremen capture Arrakin City including the Emperor and his cohorts. Paul is challenged by Feyd Rautha (Sting) to a knife fight. Paul kills Feyd. Paul becomes an Emperor.
Lester
More mistakes in Dune
Duke Leto Atreides: I'll miss the sea, but a person needs new experiences. They jar something deep inside, allowing him to grow. Without change something sleeps inside us, and seldom awakens. The sleeper must awaken.
Trivia: The TV version of this film lists a Mr. 'Judas Booth' as the screenwriter. Allegedly this was to get back at David Lynch (who was both screen writer and director) for so brutally condemning and demanding that all credits to him be removed from the film's re-edit for TV. The name is a combination of Judas Iscariot, the betrayer of Jesus, and Abraham Lincoln's killer, John Wilkes Booth.
Upvote valid corrections to help move entries into the corrections section.
Suggested correction: This is wrong. The Screen Writers' Guild of America has rigidly enforced rules regarding the way writers are credited for their contributions to a screenplay, and nobody but the writer can allow his or her credit to be changed. In fact, Lynch changed his screenwriting credit to "Judas Booth" as a slap in the face to the producers of the television cut of the film (which he hated), not the other way around.
Question: Why exactly did David Lynch have his name removed from the TV version?
Answer: Because it was edited in a way he didn't approve of. The film was actually over 3 hours long, and it was trimmed by about an hour for the cinema version, and then a certain amount of pick and mix went on to come up with the video version.