The Flintstones In Viva Rock Vegas (I): Beware the sequel - or 'prequel' in this case - in which all the original stars are significantly absent. The Full Monty's Mark Addy bravely shoulders the part of Fred Flintstone opposite Stephen Baldwin as Barney Rubble, Kirsten Johnson as Wilma and Jane Krakowski as Betty. With Joan Collins replacing Elizabeth Taylor as Wilma's mother, Viva Rock Vegas boasts a yabba-dabba-B-list cast. This takes us back to when 'Bronto King' worker Wilma met Fred, involving a sidetrip to 'Rock Vegas' with her ex-boyfriend Chip Rockefeller (Thomas Gibson). Even the puns are looking weak; these Hanna-Barbera-based cartoon characters may have travelled well through the ages, but it looks unlikely they'll survive cinematically past this film.