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The setting for Vince Vaughn‘s most recent comedy, Couples Retreat, is tropical French Polynesia. So it’s no wonder that the female stars of the film–Malin Akerman, Kristen Bell, hottie Carlos Ponce and Kristin Davis–have been have spent most of their time in bikinis and other skimpy loungewear.

Jokingly, Vince tells MTV News, “If me and the guys are going to show some skin around, we know the ladies are going to show up. That’s what we do.” Continuing the gag, Vince adds, “If the scene calls for it, I’m gonna do it. Thankfully, diet and exercise are high on my list.”

Fun fact, Peter Billingsley who played Ralphie Parker in A Christmas Story, directed Couples Retreat.

But in all seriousness, threw were lots of gorgeous people on the red carpet for the event, including Helen Mirren in a stunning blue dress.

Gallery Info: Kristen Bell, Dax Shepard, Vince Vaughn, Peter Billingsley, Jon Favreau, Jason Bateman, Ralph Macchio, Joanna Walsh, Carlos Ponce, Erika Christensen, Natasha Gregson Wagner, Xavier Tournaud, Phillip Jordan, Kurt Warner, Malin Akerman, Jean Reno, Helen Mirren, Faizon Love, John Michael Higgins and Kali Hawk at the premiere of Couple’s Retreat.