The Griswolds generously open their home for the holidays to a slew of interesting family members in "Christmas Vacation." Here's how they're all related.

When "National Lampoon's Vacation" was released into theaters back in 1983, it is unlikely that many critics and viewers had any idea of the comedy classic it would become. From the opening theme ...

After Fleetwood Mac released Mirage in 1982, and were on hiatus for five years. Lindsey Buckingham was commissioned to write a song by film director Harold Ramis that became an iconic road trip ...