- Awesome, Dear Boy: George Perez actually made himself contractually obligated to to draw this crossover when it happened for this reason.
- Development Gag:
- Captain America and Batman's fight was originally planned to go to completion. Cap would've won, after a while. In the actual book, they spar for a few moments before calling it off, with Batman admitting that Cap could win, after a long time.
- When the Marvel and DC universes are given a merged history, The Wasp recalls the original proposed storyline (the '80s-era teams battling Kang and the Lord of Time) as a previous meeting of the two teams.
- Doing It for the Art
- The cover for the third issue, representing every member either team had in its 40+ years of history. 208 characters in total. Perez actually injured his wrist drawing that cover, which delayed the miniseries for about a month.
- There's a page where a bunch of DC characters are stacked up against their Marvel characters on various chessboards. If you squint real hard, you can see Death of the Endless face to face with Marvel's Death.
- Unfinished Episode: A Justice League/Avengers crossover was created 20 years before JLA Avengers came out. The script was completed and George Perez started illustrating it but then Marvel and DC had a falling out. By the time the reconciled enough to try again the cast lineups and universe history changes necessitated scrapping the original script and starting from scratch.
- Although, it also had an insanely awesome plot point in it: Hawkeye and Green Arrow hit an object at the dawn of time, causing the big bang.
- What Could Have Been
- As noted under Development Gag, Kurt Busiek's original plan was for the Batman/Captain America fight to play out all the way, with Cap eventually winning.
- The original plan for chapter three of the story was that the Justice League would have an adventure with Marvel-style storytelling and the Avengers would have an adventure with DC-style storytelling. Perez would even draw the Avengers in the style of Carmine Infantino and the JLA in the style of Jack Kirby. Ultimately it was decided that this would slow the story down too much and it was discarded.
Trivia / JLA/Avengers