Ben Jones, a former Georgia congressman who played the wisecracking mechanic on the popular series from 1979-85, said profanity and sexual content in the film make a mockery of the family friendly show.
"Basically, they trashed our show," said Jones, who now lives in the mountains of Washington, Va. "It's one thing to do whatever movie they want to do, but to take a classic family show and do that is like taking 'I Love Lucy' and making her a crackhead or something."
Jones said he read a script of the movie, which is scheduled to be released next month, and that it contained profanity, "constant sexual innuendo and some very clear sexual situations."
On Wednesday, Jones wrote an open letter to fans on his web site, cootersplace.com, urging them to stay away.
"From all I have seen and heard, the 'Dukes' movie is a sleazy insult to all of us who have cared about the 'Dukes of Hazzard' for so long ... ," Jones wrote. "Unless they clean it up before the August 5th release date I would strongly recommend that true blue 'Dukes' fans hold their noses and pass this one up."