Factual error: Tarantulas do not spin webs.
Earth vs. the Spider (1958)
1 factual error - chronological order
Directed by: Bert I. Gordon
Starring: Ed Kemmer, Eugene Persson, Gene Roth, June Kenney
Revealing mistake: When the spider is being electrocuted and falls off the cave wall, you can easily see the string that was holding it.
Mike Simpson: Suddenly I feel hungry.
Carol Flynn: Me too.
Mike Simpson: Hey I just remembered, I've got a candy bar with me.