In fact, according to Chris Hemsworth, no one could have had a completed copy if they’d tried, as the film’s script wasn’t even finished.
Typically, when it comes to the security of the script to a film like Avengers: Endgame, you’d expect a certain level of secrecy with the finished product.
We saw this in play when Tom Holland admitted he didn’t have a complete script to the film, but as luck would have it, he wasn’t the only person who didn’t have the full story.