Flintstones in Viva Rock Vegas, The (2000) - Synopsis
Fred Flintstone (Mark Addy) and his best friend Barney Rubble (Stephen Baldwin) are on top of the world. They have just graduated from the Bronto Crane Academy and secured jobs at the rock quarry in Bedrock, and life couldn't be better.
Wilma Slaghoople (Kristen Johnston), the beautiful young heiress and daughter to Colonel (Harvey Korman) and Pearl Slaghoople (Joan Collins), is miserable. Her mother, resplendent in the latest Isaac Mizraki gown as she dines on caveiar, has Wilma's life mapped out for her, including a marriage to the suave and debonair Chip Rockefeller (Thomas Gibson). He does drive a Cadirock and he was first in his class at Princestone, but to Wilma he's a total bore, so she runs away from home.
In Bedrock, Wilma meets Betty O'Shale (Jane Krakowski), and the two become fast friends, residing at Melrock Place and working at the local Bronto King. Following a disastrous first date, Fred ends up falling head over heels in love with Wilma, while Barney and Betty become inseparable. So, leaving puppy Dino behind, Fred and Barney-along with a green alien from outerspace, The Great Gazoo (Alan Cumming)---whisk the girls away on a BC-10 for a romantic weekend in Rock Vegas. But Chip has other plans in mind, and with the help of Roxie (Alex Meneses), a Rock Vegas showgirl, Rockefeller devises a plan to get Fred out of the picture once and for all, leaving Wilma and her family's fortune all to himself.