Pierce, a former used car salesman, borrowed $160,000 to produce and direct The Legend Of Boggy Creek(1972), a film that is part horror and part documentary and chronicles a legendary man-monster prowling the river bottoms of Fouke, Arkansas. Pierce employed many local citizens of Fouke(AR) in the production of this movie. I'll never forget the howl of the "Fouke monster" in this film, which I saw when it first aired in theaters back in 1972. I was a kid and this movie gave me the creeps! The Legend Of Boggy Creek would ultimately earn $25 million at the box office, an outstanding return on Pierce's investment and which would help him make other movies including The Town That Dreaded Sundown and a sequel "Boggy Creek" film called Boggy Creek II: And The Legend Continues(in 1985).
Here's the trailer for The Legend Of Boggy Creek: