Continuity mistake: The egg timer in the jail is about to run out, but when Dale runs over to it and tries to turn it over, there is more sand in it than before.
Flash Gordon (1980)
Ending / spoiler
Directed by: Mike Hodges
Starring: Max von Sydow, Sam J. Jones, Topol, Melody Anderson
Flash crashes his ship into Ming's palace and Ming is impaled. Ming aims his ring at himself and disappears. Prince Barin becomes king, appoints Vultan as general of the armies and declares that everyone live together in peace. Dale asks Dr. Zarkov if it's possible to return to Earth and he says that he doesn't know but they can try. An unknown person picks up Ming's ring and his evil laughter is heard...
Garrett
More mistakes in Flash Gordon
Prince Vultan: GORDON'S alive.
Trivia: The tree person that gets locked into the cage with Flash (Fico by IMDB credit list), that "stole" the key to the cage, is Richard O'Brien, who is known for creating the Rocky Horror Show.
Question: Why did Prince Barron hate Flash so much? His burning desire to kill this complete stranger left me somewhat baffled.
Chosen answer: Prince Barin was the fiance of Princess Aura, who took a shine to Flash. He was quite simply jealous.
Ioreth