<P> Cliff kidnaps Pebbles and Bamm - Bamm and demands the Dictabird in exchange for the children's safe return . Fred and Barney confront Cliff at the quarry, where Cliff has tied Pebbles and Bamm - Bamm to a huge machine . Though they hand him the Dictabird, Cliff activates the machine to stall them . Barney rescues the children while Fred destroys the machine . The Dictabird escapes from Cliff and lures him back to the quarry, where Miss Stone knocks him out, having had a change of heart after learning that Cliff was planning to betray her . The police arrive and Cliff attempts to flee, but he is petrified by a substance falling from the machine . </P> <P> With the Dictabird's help, all charges against Fred are dropped, while Miss Stone is arrested as Cliff's accomplice, though Fred is confident she will be granted leniency for helping them stop Cliff . Impressed with the substance that Fred inadvertently created by destroying the machine, Mr. Slate dubs the substance "concrete" in honor of his daughter Concretia and makes plans to produce it with Fred as the president of its division, thus ending the Stone Age . Having realized the negatives of his wealth and status as a vice president, Fred declines and asks that the workers be rehired and given the job benefits he initially set out to achieve, which is granted . As the Flintstones and Rubbles have finally made amends, Fred and Barney get into a humorous quarrel when Fred once again asks Barney for a small amount of money for breakfast . </P> <Ul> <Li> John Goodman as Fred Flintstone </Li> <Li> Rick Moranis as Barney Rubble </Li> <Li> Elizabeth Perkins as Wilma Flintstone </Li> <Li> Rosie O'Donnell as Betty Rubble </Li> <Li> Kyle MacLachlan as Cliff Vandercave </Li> <Li> Halle Berry as Miss Stone </Li> <Li> Elizabeth Taylor as Pearl Slaghoople </Li> <Li> Mel Blanc as Dino (archive audio); Blanc previously supplied the voice of Barney in the original series . </Li> <Li> Elaine & Melanie Silver as Pebbles Flintstone </Li> <Li> Hlynur & Marinó Sigurðsson as Bamm - Bamm Rubble <Ul> <Li> Elizabeth Daily provides Bamm - Bamm's voice, though uncredited </Li> </Ul> </Li> <Li> Dann Florek as Mr. Slate </Li> <Li> Richard Moll as Hoagie </Li> <Li> Irwin Keyes as Joe Rockhead </Li> <Li> Jim Doughan as Maitre d' </Li> <Li> Harvey Korman as the Dictabird (voice); Korman previously voiced the Great Gazoo in the original series . </Li> <Li> Jonathan Winters as Grizzled Man, a co-worker of Fred and Barney's </Li> <Li> Jack O'Halloran as Yeti </Li> <Li> The B - 52's as The BC - 52's </Li> <Li> Jean Vander Pyl as Mrs. Feldspar; Vander Pyl previously voiced Wilma in the original series . </Li> <Li> Laraine Newman as Susan Rock </Li> <Li> Jay Leno as a talk show host </Li> <Li> William Hanna as a boardroom executive </Li> <Li> Joseph Barbera as a man driving a Mersandes </Li> <Li> Sam Raimi as Cliff Vandercave look - alike </Li> </Ul> <Li> John Goodman as Fred Flintstone </Li>

Who played pebbles and bam bam in the flintstones movie