When their Christmas trip to Fiji gets cancelled, kin-avoiding snuggle-bunnies Kate (Reese Witherspoon) and Brad (Vince Vaughn) are forced to hit four family holiday gatherings in one endless day. Because this is a by-the-numbers holiday-comedy, both Kate and Brad have divorced parents, who've created new, wildly different wacky families, who have also never met their child's significant other. Say hey to the trailer-parkish goobers, the house of religious cougars and the post-hippie bourgeoisie artist: Oh, the surprises and embarrassments in store! Witherspoon and Vaughn are game (if in familiar roles) and able supporting players include Mary Steenburgen, Sissy Spacek and Kristin Chenoweth; country crooners Tim McGraw and Dwight Yoakam just have plain odd roles. But Seth Gordon's film is just the same mismatched-family Xmas story Hollywood repackages every year. See only if you're the sort that looooves every Christmas movie; if not, just stay home and make fun of your own family.