The most successful superhero and comic book movies reach their box office heights by not just being one-weekend wonders. Tentpoles like "The Dark Knight," "Black Panther," or the two "Spider-Verse" titles , just to name a few examples, stick around for months and months in theaters. Even audiences who aren't normally interested in superhero fare come out to see these motion pictures, while die-hard fans tend to revisit them again and again. Great legs at the box office are critical to conjuring up a superhero movie moneymaker.

Without strong retention, these films just don't reach their full financial potential. Just ask the superhero movies with the biggest second weekend drops ever at the domestic box office. None of these titles made a massive impact in their lifetime theatrical runs,

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