5. "Marvel's The Avengers" (2012)

Total gross revenue: $1,518,800,000

The first "Avengers" movie brought together an all-star cast of comic book heroes — and Marvel's efforts were rewarded at the box office. The film passed $1 billion in ticket sales in just 19 days — which means it's tied for third place in the list of fastest-grossing movies alongside "Avatar" and "Harry Potter and the Deathly Hallows: Part Two."