In the classic movie "Christmas Vacation," the present that Clark Griswold (played by Chevy Chase) gives to his wife, Ellen (played by Beverly D'Angelo), is a family heirloom necklace. The necklace has been in the Griswold family for generations and is considered a cherished possession. In the movie, the necklace is stolen by a burglar and the Griswold family spends the rest of the movie trying to find it and recover it.