Factual error: In the scene showing Septimus swimming underneath the water after having dived through Capt. Shakespear's cabin window, you can see Septimus holding his fighting knife in his right hand. After a stroke or two he lets go of the knife and it doesn't sink.
Stardust (2007)
1 factual error - chronological order
Directed by: Matthew Vaughn
Starring: Robert De Niro, Michelle Pfeiffer, Ian McKellen, Claire Danes, Sienna Miller, Charlie Cox, David Kelly, Alastair MacIntosh, Bimbo Hart
Continuity mistake: When Septimus attacks the redheaded farm boy, the position of his knife changes between shots, from the farm boy's throat to behind his ear, several times. (00:58:05)
King: Only he of royal blood can restore the ruby. And the one of you who does so, shall be the new king of Stormhold.