As of now, Captain America: Civil War is still the movie to beat this year at the worldwide box office, with $1.15 billion. However, Disney Pixar's Finding Dory has the biggest domestic total with $478.4 million, well ahead of Cap's $407.7 million here in the states. Still, this superhero adventure is a huge hit, both critically and commercially, kicking off Marvel Phase 3 and introducing new heroes like Black Panther (Chadwick Boseman) and Spider-Man (Tom Holland). One of the most memorable moments of the film, though, has to be the introduction of Giant-Man. Today we have a glimpse at this character's early design with new concept art, which offers some intriguing hints about the early story development.

There had long been rumors that Giant Man would surface at some point during the movie, and he did so during the now-iconic airport fight scene. Scott Lang (Paul Rudd) uses his suit's special capabilities to help Team Cap turn the tide in the battle against Team Iron Man. Concept artist Andy Park shared two new pieces of artwork on Twitter, featuring Giant Man, who seems to be running through an airplane while engaged in battle with Chris Evans' Captain America, revealing that, at least at some point during the development, Scott Lang was on Team Iron Man.

We don't know exactly when this artwork was commissioned, but perhaps it was before the studio worked out the Ant-Man post-credit scene, and how it tied into Captain America: Civil War. Anthony Mackie's The Falcon also made a special appearance in Ant-Man, engaging in battle with Scott on the rooftop of the Avengers' new facility. During the post-credit scene, Cap and Falcon find The Winter Soldier, whose metallic arm has been locked in a vise, which gives Falcon the idea to bring in Ant-Man to help them out. This leads to a natural transition into Team Cap for Scott, when the main battle gets under way.

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While it's interesting to speculate what might have happened if Ant-Man joined Team Iron Man, we wouldn't have gotten another memorable moment from Civil War, where Ant-Man takes a ride on one of Hawkeye's (Jeremy Renner) arrows. Having a fast-talking character like Scott Lang, whose introduction to Cap provided plenty of comic relief, join Iron Man may have not paired up so well with another eventual member of Stark's team. The excitable Spider-Man, whose interactions with these heroes and with Tony Stark (Robert Downey Jr.) provided some much needed levity, may have clashed with Scott Lang's one-liners. Perhaps it's best that Scott eventually went the way of Team Cap.

As for Giant Man, it's possible that we'll see him again in the Marvel Phase 3 sequel Ant-Man and the Wasp, which starts shooting early next year and will hit theaters on July 6, 2018. It's certainly possible that Giant Man may surface once again in this sequel, which will also star Evangeline Lilly as The Wasp and Michael Pena as Luis, but we'll have to wait and see. In the meantime, take a look at this concept art form Captain America: Civil War, where Giant Man is seen fighting for the other side.

Ant-Man Captain America Civil War concept art