"Captain America: Civil War" is finally out on Blu-ray and DVD.
Just how much do you know about the making of the film?
INSIDER went through the Blu-ray commentary featuring co-directors Anthony and Joe Russo and screenwriters Christopher Markus and Stephen McFeely to get an inside look at what it took to bring the highest-grossing movie of the year so far to the big screen.
Keep reading to see what we learned.
The Winter Soldier's mind control backstory was almost more complicated.
At the beginning of the film, we're shown a flashback of the Winter Soldier/Bucky Barnes getting brainwashed by a series of words. He's in some sort of brain control chair, and according to screenwriter Christopher Markus, it almost played a larger role.
"There were many drafts where they were chasing something called the mind crown, basically that thing that goes over his head," says Markus. "And then somebody very wisely said, 'Couldn't it just be like a notebook with some words in it?"
The screenwriters picked the Winter Soldier's mind control words somewhat carefully.
Nine words repeat themselves on screen throughout the movie to trigger a brain control mechanism for The Winter Soldier.
"I think we picked Russian words that sounded interesting. Had some chewiness to it. And then, even when you read them it wasn't, you know, kittens, puppies," said Stephen McFeely.
Markus added that they looked at how the words read in English to "make you think you were watching something cool."
You're not supposed to know whether to side with #TeamCap or #TeamIronMan by the end of the film.
"Captain America: Civil War" pits the two superheroes against one another and if you thought you were supposed to side with one more than the other by the film's end, you were wrong.
Co-director Joe Russo said one of the most difficult things about making the film was balancing Captain America and Tony Stark's roles to make sure each one felt as if they had an equal voice in the film and that their points of view were equally represented.
"By the time we got to the end of the movie you're left with a very complicated choice to make. You couldn't tell who was wrong and who was right and hopefully you left the theater and argued with your friends and family about who was wrong and who was right," he explained.
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