I saw this like in November or something when it premiered on Cartoon Network. It is a Cartoon Network original movie from 2001. It is pretty funny, and it is sort of a R Rated Flintstones. The animation is a copy of the original series and so is the sounds from the show. I actually liked it.

The Flintstones on the Rocks
Saturday Mar 9 7:00 PM Cartoon Net
Sunday Mar 10 10:00 AM Cartoon Net
120 min.
The Flintstones and Rubbles vacation in Rockapulco to celebrate Fred and Wilma's wedding anniversary. But the romantic spark fizzles until they become pawns in a jewel caper that rekindles the flame. .
Category: Movie, Cartoons & Animation
Release Year: 2001

What do you mean by R rated Flintstones, please clarify?

Originally posted by Tiger32
What do you mean by R rated Flintstones, please clarify?

For the Flintstones this is R Rated. Like when Fred & Wilma are in bed making noises, Barney & Betty hear it, it just made me crack up since you don't see this on the Flintstones. You'll see what I mean when you watch it.