Visible crew/equipment: When Flash is attacked by the alien he falls on a noticeable brown safety mat.
Flash Gordon (1980)
1 visible crew/equipment mistake - chronological order
Directed by: Mike Hodges
Starring: Max von Sydow, Sam J. Jones, Topol, Melody Anderson
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.
Dr. Hans Zarkov: We are only interested in friendship. Why do you attack us?
The Emperor Ming: Why not? Pathetic earthlings. Hurling your bodies out into the void, without the slightest inkling of who or what is out here. If you had known anything about the true nature of the universe, anything at all, you would've hidden from it in terror.
Trivia: Max von Sydow's costume for the Emperor Ming weighed over 70 pounds and he could only stand in it for a few minutes at a time.
Question: What exactly was the enormous creature that came out of the ground and attacked Flash in the forest?
Answer: Spider.