Number of movies: 31 Average gross: $143.4 million Highest-grossing film: E.T. ($435.1 million)Number of movies: 12 Average gross: $177.9 million Highest-grossing film: Transformers: Revenge of the Fallen ($402.1 million)Number of movies: 12 Average gross: $177.9 million Highest-grossing film: The Lord of the Rings: The Return of the King ($377.8 million)Number of movies: 18 Average gross: $116.2 million Highest-grossing film: Forrest Gump ($423.3 million)Number of movies: 9 Average gross: $219.4 million Highest-grossing film: Avatar ($760.5 million)Number of movies: 11 Average gross: $177.7 million Highest-grossing film: The Dark Knight ($534.9 million)Number of movies: 24 Average gross: $79 million Highest-grossing film: The Grinch ($260 million)Number of movies: 18 Average gross: $102.2 million Highest-grossing film: Alice in Wonderland ($334.2 million)Number of movies: 34 Average gross: $53.4 million Highest-grossing film: American Sniper ($350.1 million)Number of movies: 15 Average gross: $116.7 million Highest-grossing film: Harry Potter and the Sorcerer's Stone ($317.6 million)Number of movies: 6 Average gross: $290.7 million Highest-grossing film: Star Wars: The Phantom Menace ($423.3 million)Number of movies: 5 Average gross: $336.8 million Highest-grossing film: Star Wars: The Force Awakens ($936.7 million)Number of movies: 23 Average gross: $152.9 million Highest-grossing film: The Martian ($423.3 million)Number of movies: 6 Average gross: $271.9 million Highest-grossing film: Harry Potter and the Deathly Hollows: Part 2 ($381 million)Number of movies: 10 Average gross: $152.9 million Highest-grossing film: Pirates of the Caribbean: Dead Man's Chest ($423.3 million)