In Super Bowl commercial.
Hide your breakables and stay off the roads, because Clark and Ellen Griswold are going on vacation again.
Chevy Chase and Beverly D'Angelo — who played the calamity-magnet parents in "National Lampoon's Vacation" and three sequels — will reprise their roles in a new ad campaign to be launched during the Feb. 7 2010 Superbowl.
The advertised service in the homage to the 1983 original about a madcap American roadtrip? HomeAway vacation rentals, naturally.
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