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
Revealing mistake: At the end fight scene when Lamia is laughing, you can see that her teeth are only darkened in the front, not the rear. (01:55:10)
Mormo: There is someone following your tracks.
Lamia: A Witch? A Warlock?
Mormo: A Prince and he's catching you up. Get a move on.