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.
Dale Arden: I'm a New York City girl. It's a little too quiet around here for me.
More trivia for Flash GordonMore questions & answers from Flash Gordon
Answer: Since one meaning of "bore" has to due with digging tunnels and they are used in the torture scene, one can assume that they are worms that eat holes into your flesh.