The fourth and final member of the geriatric crew headed for one last tumble in Sin City has been found. Kevin Kline will party alongside Robert DeNiro, Michael Douglas and Morgan Freeman in Last Vegas. The film (described repeatedly as “The Hangover with old guys”), centers on four friends who plan a bachelor party in Vegas for their last single friend (Douglas) who has decided to get hitched after years of being a single ladies man. The film is set to begin production in the next few months with John Turtletaub (National Treasure) directing the script from Dan Fogelman (Crazy, Stupid, Love). The movie sounds promising, but it really needs an R-rating to reach its full potential . . .