Guardians of the Galaxy (2014)

Guardians of the Galaxy (2014) charmed critics with a 92% Rotten Tomatoes score and $773 million worldwide, 25% more than #7 Iron Man. It held the #1 superhero comedy ranking for three years, earning a 90% audience score that exceeds the genre average by 15 percentage points. Its $195 million budget resulted in a 4x multiplier, and its soundtrack earned a Grammy nomination, outperforming every other film in this list in marketing ROI.