Tremors is a 1990 American western monster film from Universal Pictures, produced by Gale Anne Hurd, Brent Maddock, and S. S. Wilson, directed by Ron Underwood, and written by Maddock, Wilson, and Underwood. Tremors stars Kevin Bacon, Fred Ward, Finn Carter, Michael Gross, and Reba McEntire. This is the first installment of the Tremors franchise, which was followed by four direct-to-video sequels: Tremors 2: Aftershocks; Tremors 3: Back to Perfection; a series prequel, Tremors 4: The Legend Begins; and finally Tremors 5: Bloodlines. Wikipedia
Earl Bassett: Hey, Rhonda you ever seen anything like this before?
Valentine McKee: Oh, sure Earl. Everyone knows about them we just didn't tell you.