The Dark Knight (2008)

The Dark Knight (2008) sets the gold standard for superhero cinema, anchored by Heath Ledger's Oscar-winning Joker performance. It outperforms Spider-Man: Into the Spider-Verse (#2 on this list) in critical acclaim, with a 94% Certified Fresh Rotten Tomatoes score and an 8.4/10 IMDb rating, making it the highest-rated superhero film on that platform. The film's $1 billion global gross was 25% higher than the average superhero sequel's opening weekend, proving its unprecedented box office impact.