The Flintstones in Viva Rock Vegas

The Flintstones in Viva Rock Vegas (also known as The Flintstones 2 or The Flintstones 2: Viva Rock Vegas) is a 2000 American comedy film and prequel to 1994's The Flintstones, based on the cartoon television series of the same name. Produced by Amblin Entertainment and Hanna-Barbera Productions and distributed by Universal Pictures, it is set before the events of the first film and features very few of the original cast. Ann-Margret, who guest-starred as "Ann-Margrock" in the season four episode "Ann-Margrock Presents" from the animated series, sings the theme song, which is a slightly rewritten version of the song from Viva Las Vegas.