- Development Hell: Daredevil: End of Days, a miniseries depicting the hypothetical deaths of Daredevil and his "biggest secret", was in development since at least 2009. Thankfully, the series is finally being released starting late 2012.
- Name's the Same: There was a superhero called "Daredevil" back in the golden age, but he's been since forgotten.
- Saved By The Network: The title had been faltering since Marv Wolfman left the title. By the time Frank Miller had become penciler, sales were getting so bad that other executives advised Jim Shooter to cancel it. Shooter disagreed, having (correctly) guessed that Miller would revive interest in the title.
- What Could Have Been: A Daredevil video game in 2004
- According to Shooter, Miller wanted to quit the title shortly after becoming penciler due to his dissatisfaction with then-writer Roger McKenzie. Shooter managed to talk him out of it, and editor Denny O'Neil later promoted Miller to writer.
- The Owl was going to be the main villain of X-Factor, and there were clues planted towards it, until Apocalypse was created for that role.
- Ability Over Appearance: The Kingpin, traditionally a large, bald white man◊, was played by Michael Clarke Duncan. He was the best actor with the size that they could find, and even then, he had to gain some weight for the role. Ironically, the Kingpin was originally supposed to be black in the comics, but an editor thought it would be racist to have a black villain. This carried over into the short-lived Mainframe animated Spider-Man: The New Animated Series series on MTV, to the point of actually having Michael Clarke Duncan voice the character. Incidentally the most famous Kingpin before that, Roscoe Lee Browne of Spider-Man: The Animated Series was also black.
- DVD Bonus Content: Features the standard extra features, such as a director's commentary and other behind the scenes features but one of the unique features is an Audio Description track for visually impaired people.
- Executive Meddling: Why the theatrical version was met with a mixed reaction, but the director's cut was more warmly received. Fox smelled potential spin-off with Elektra, so an entire subplot concerning Matt Murdock's "lawyer by day" persona (with his case eventually leading him to the Kingpin) was removed completely. His internal struggle with his vigilante justice clashing with his faith additionally take a backseat to increased screen time for Elektra and their love angle, and the film cut down on the intended Darker and Edgier tone. As a result upon its release, Daredevil nearly became the first film to not cross the $100 million domestic barrier after a $40 million opening, and Elektra completely tanked. Thankfully, the director's cut Set Right What Once Went Wrong.
- A different form occurred on the DVD release, where both the cast and crew insisted that an Audio Description be included, making it one of the first films to do so.
- Fake Nationality: The Greek-American Elektra Natchios is played by very not-Greek Jennifer Garner.
- Hey, It's That Guy!: Ralph Cifaretto is on the right side of the law, A.J. Soprano bullies a young Matt Murdock, and Spiros Vondas is finally getting some Justice.
- Happy Hogan is Matt's partner in the law firm.
- Old Shame:
- Ben Affleck does not look back on this experience fondly, stating that wearing a costume was "a source of humiliation". Considering he's taking up Batman's cape and cowl, though, it may have been the backlash from the Hollywood Hype Machine more than anything.
- Averted with Writer/Director Mark Steven Johnson - you would expect him to dislike the theatrical cut of the film due to Executive Meddling that left an entire subplot on the cutting room floor, but on the Daredevil: Director's Cut DVD, he states that whilst he likes some of the scenes added to the theatrical cut, he feels the Director's Cut was a superior film due to keeping various elements cut from the original release.
- Promoted Fanboy: Ben Affleck was reportedly a fan of the Daredevil comics as a kid and wrote the foreword for the collection of Daredevil issues his buddy Kevin Smith wrote.
- Romance on the Set: Affleck was still involved with Jennifer Lopez and Garner with Scott Foley at the time, but after those relationships ended, Affleck and Garner became married with children for ten years.
- Scully Box: Used on Michael Clarke Duncan of all people. While he is every bit as imposing as his comics counterpart at 6'5", They still had to make him appear more imposing when next to Ben Affleck, who stands at 6'4". Helped by the fact that Duncan is far more muscular than Affleck, making him seem bigger.
- Unintentional Period Piece: The film's soundtrack is quite a jarring reminder of that brief period when nu metal was in.
- What Could Have Been: The director's cut was intended to be included on the original DVD release, but ultimately the idea was dropped due to lack of disc space.
- Ben Affleck was going to play Bullseye, but landed the lead role. Had this happened, it would probably make the scene where Bullseye guts Elektra an interesting topic for their kids.
- Matt Damon was initially cast as the title role, but dropped out due to Creative Differences with director Mark Steven Johnson.
- The original intention was for the film to be more realistic action instead of the Wire Fu and CG-laden Roof Hopping. While in production, the hype of Spider-Man with its big action sequences had them rework the fight scenes to be comparable.
- PenÚlope Cruz, Salma Hayek, Natalie Portman, Lucy Liu, Jessica Alba, Katie Holmes, Mia Maestro, Rhona Mitra, Jolene Blalock, Neve Campbell, and Eliza Dushku were all considered for the role of Elektra.