The Griswold family's vacation misadventures feature in both "Hotel Hell Vacation" and the "National Lampoon Vacation" series, as sanctioned by what company?
National Lampoon's Vacation (film series):  The series portrays the misadventures of the Griswold family, whose attempts to enjoy vacations and holidays are plagued with continual disasters and strangely embarrassing predicaments.
i don't know