Iron Man
One of the most important superhero films of all time, 2008’s Iron Man launched the Marvel Cinematic Universe and laid the groundwork for The Avengers. The 2008 film also reinvigorated Robert Downey Jr.’s career and proved that a lessor known superhero could become a huge box office commodity. Its post-credits scene, in which Samuel L. Jackson’s Nick Fury mentions the Avengers Initiative, perfectly topped off the more than satisfying franchise launcher.