Trivia: If a tarantula were to ever grow to the gargantuan size that it does in this film, it would resemble a huge furball. The filmmakers were aware of this, but for obvious reasons decided to tone down the amount of hair. (00:56:35)
Trivia: The film originally featured the working title "Arac Attack." ("Arac" being a shortened version of "Arachnid", a class of animals that spiders belong to) However, following the September 11, 2001 terrorist attacks and rising tensions in the Middle East, the original title was dropped in many countries because producers felt "Arac" sounded too similar to "Iraq", and they didn't want to have any social or political implications in the title. (However, the film was released with the original title in some territories).
Trivia: In addition to Scarlett Johansson appearing in both this film and the Marvel Cinematic Universe, two other actors also appeared in Marvel properties. Co-star Scott Terra would appear as Young Matt Murduck in the following year's "Daredevil." And co-star Kari Wuhrer provided voice-over roles in several Marvel animated projects.
Trivia: This film has some notable connections to the comic-book company Marvel. To start, is was released the same summer as the 2002 film "Spider-Man." The Sheriff's family has the last name "Parker," which is the same last name as "Peter Parker", aka Spider-Man. At one point, the mayor asks what attacked, to which another character replies "A spider, man!" as a cheeky reference to the character. And Scarlett Johansson plays a fairly major role in the film... and she would later go on to play Natasha Romanov in the Marvel Cinematic Universe, who goes by the codename "Black Widow " which is a breed of spider.
Answer: Both! The owner of the spider farm was feeding the spiders bugs from the water that had the chemical spill in it. The bugs were contaminated with the chemical, thus contaminating the spiders. Note: The man who owned the spider farm had no idea about the contaminated water.
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