New Line's developing a fifth Vacation movie, this one focussing on grown-up Rusty Griswold taking his own family on vacation. Hijinks ensue. They want Chevy Chase and Beverly D'Angelo to cameo as Grandpa and Grandma Griswold, but one of the traditions of the Vacation movies is that the Griswold children were always protrayed by different actors. Would any of them still be up to the task?
Anthony Michael Hall (VACATION) - After ruling the 1980's as The Geek, he buffed up, took more serious roles, and later enjoyed success on USA's The Dead Zone series. Most recently he played a newscaster in The Dark Knight. I think even if Hall could do it, the producers would want a bigger name.
Jason Lively (EUROPEAN VACATION) - Last movie he did was 1992's Maximum Force, an action dud with Sam J. Jones and Mickey Rooney. I see he also produced and directed a DVD in 2004 called Learn to Hip-Hop. He's out.
Johnny Galecki (CHRISTMAS VACATION) - He's flying high now on CBS's The Big Bang Theory. I could see him doing it. Again, not a big enough name, methinks.
Ethan Embry (VEGAS VACATION) - I never did see this. I heard from friends it was terrible, so I skipped it. Embry did some impressive work on Showtime's Brotherhood and most recently had a supporting role on the big-screen with Eagle Eye. He's not aging well.
I'd say they try to get Ryan Reynolds or Matt Damon or Paul Rudd or Jason Bateman or Jason Segel... (Maybe Kevin James, if they say Rusty really let himself go?) But of the four Rusty alum, I'd like to see Galecki get the shot.