2001: "Harry Potter and the Sorcerer's Stone"
Adjusted gross: $1.32 billion
Unadjusted gross: $975 million
What it's about: With "Sorcerer's Stone," the "Harry Potter" series kicked itself off and became one of the most popular movie franchises in history, all because of J.K. Rowling's insanely popular books. The first movie finds Harry discovering he's a wizard and leaving his abusive aunt and uncle to go to the magical school of Hogwarts, where he makes friends and fights off evil.