Trivia: Had the longest gap between films for any movie in the series. "Tremors 2: Aftershocks" was released six years after the original. "Tremors 3: Back to Perfection" was released five years after "Tremors 2." And "Tremors 4: The Legend Begins" was released three years after "Tremors 3." By contrast, "Tremors 5: Bloodlines" was released a full eleven years after "Tremors 4."
Trivia: The first film in the series without any direct involvement from creators Brent Maddock and S.S. Wilson. While the film is very loosely based on a story-treatment written by the two back in 2004, the finished film only takes some very basic and minor cues from their draft, and as a result, they were not credited. The two backed away from the project early on, when they found out they were not going to have complete creative control.
Trivia: Although the series creators were not involved in the film, the lead screenwriter John Whelpley has some history with the series - he was also the lead screenwriter for "Tremors 3: Back to Perfection."