The Flintstones: On the Rocks is a 2001 American animated made-for-television comedy-drama film based on the 1960s Hanna-Barbera series The Flintstones. Directed by David Smith and Chris Savino, the film was intended to emulate the format of the series' first two seasons by featuring humor distinctly more mature and aimed at older audiences than the later seasons, and focuses more on the relationships between the original core cast of Fred Flintstone, Barney Rubble, Wilma Flintstone and Betty Rubble. In the film, the Rubble family is prompted to take Fred and Wilma to Rockapulco for their anniversary vacation, in an attempt to rekindle their troubled marriage. Once there however, Fred and Wilma both find themselves tempted in other directions. In addition to the show's traditional animation style, the film also utilizes stop-motion animation.