In basic outline, director Dennis Dugan's Grown Ups is similar to last autumn's Couples Retreat, that witless, odious comedy in which a gaggle of Hollywood stars enjoyed a luxury weekend on a tropical isle and demanded that audiences pick up the tab. (More than $100-million worth of ticket buyers actually did. Staggering.) Beyond their locales, though, the main difference between them is that Couples Retreat starred Vince Vaughn, Jason Bateman, Jon Favreau, Faizon Love, and Malin Akerman, while Dugan's film top-bills Adam Sandler, Kevin James, Chris Rock, David Spade, and the entertainment vacuum known as Rob Schneider. Was this Happy Madison production - written by Sandler and Fred Wolf - going to pull off the borderline-miraculous feat of being the lesser of the two movies?