The Flintstones and WWE: Stone Age SmackDown!

When Fred Flintstone loses the money his family set aside for their vacation, he has to find a way to replace it before Wilma and the children find out. His solution is to stage a prehistoric wrestling event in Bedrock, with his best friend Barney pushed into the ring against a roster of WWE performers recast as Stone Age grapplers. The bouts draw a huge crowd and bring in plenty of money, though Fred's scheme as promoter soon brings complications of its own.

Directed by Tony Cervone and Spike Brandt, the film is a 52-minute animated adventure produced by Warner Bros. Animation, Hanna-Barbera Productions and WWE Studios. It is one of a long line of direct-to-video Hanna-Barbera titles the pair made together, including several Tom and Jerry and Scooby-Doo features before and after it. The voice cast includes Jeff Bergman as Fred, Kevin Michael Richardson as Barney, Tress MacNeille as Wilma, Grey DeLisle as Betty, Eric Bauza as Bamm-Bamm, Dino and Hoppy, and John O'Hurley as Mr. Slate.

The film holds a 5.4 rating from 961 votes on IMDb and a 6.9 from 108 votes on TMDB, a notably wide gap between the two audiences. Its blend of the Flintstones and professional wrestling places it among the franchise's more unusual crossovers.