When the 30th anniversary Blu-ray edition of National Lampoon's Vacation (which hits shelves tomorrow) crossed my desk, two thoughts went through my head. 1) "I haven't seen this in ages!" and 2) "30th anniversary? Man, I am old." To my surprise, though, the movie itself doesn't feel as ancient as I did in that moment or as many comedies from that era do today. (Seen Meatballs lately? Yikes.) In fact, period fashions, music cues and surprising amounts of casual nudity aside, Vacation is fairly timeless in its comedy. The Griswold clan's ill-fated road trip to Walley World still makes us laugh in large part because the characters' personalities and the madcap situations they become ensnared in remain relatable and funny to viewers past and present.