U.S. comedian Bob Saget says stars of the classic TV show "The Golden Girls" turned down roles in his raunchy mock documentary, "Farce of the Penguins."

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A spoof of the Oscar-winning documentary, "March of the Penguins," Saget's new R-rated DVD is narrated by Samuel L. Jackson and features real stock footage of the arctic birds.

Using the voices of Lewis Black, Tracy Morgan, Norm Macdonald, Whoopi Goldberg, Christina Applegate and Mario Cantone, as well as his former "Full House" co-stars -- John Stamos, Jodie Sweetin and Lori Loughlin -- Saget offers his warped take on what penguins "really" think on those long treks to the mating grounds.

Although many of his comedian friends leapt at the chance to participate, actresses Betty White, Rue McClanahan and Bea Arthur all declined.

"It was just too dirty," Saget told UPI with a laugh. "They were all delighted to get the offer and then they read (the script) and said, 'I can't do this!"

Veteran comedienne Phyllis Diller also said, "no."

"She talks like that way off camera. ... But she wants to be remembered how she is and not be a dirty comedian, which I respect."