However, while that description might make it sound like it’s part of the Marvel Cinematic Universe (it sort of is) The Old Guard is a somewhat different story, which is exactly why Charlize Theron says she was drawn to it.
Netflix’s The Old Guard will put Charlize Theron in the role of a “comic book superhero” at least of a sort.
The film is based on a graphic novel about immortals tasked with protecting the world.