Audrina Patridge ("The Hills") has joined the cast of MGM's "Into the Blue 2" says The Hollywood Reporter.

The film revolves around Sebastion (Chris Carmack, "The O.C.") and Dani (Laura Vandervoort, "Smallville"), a married couple hired as professional divers to search for Columbus' hidden treasure.

To their horror, they learn that their wealthy employers have a much more terrifying agenda. Patridge will play a no-nonsense, beautiful beach babe whose boyfriend caters to her every command.

Charles Winkler is directing and producing the project. A bikini-clad Jessica Alba and muscle-bound Paul Walker starred in the original which grossed only $18 million theatrically, but did big business on DVD.