In addition to dropping the final trailer, Marvel Studios also released a brand new Black Widow poster today. The film is the long-awaited solo movie for Scarlett Johansson’s titular character, who made her MCU debut all the way back in 2010’s Iron Man 2. Over the course of the next several movies—especially the Captain America sequels and Avengers films—Johansson fleshed out this “sexy spy” character into a compelling, tortured individual with “red in her ledger.” Now, at last, we’ll see how that red got there in the first place. Directed by Cate Shortland, Black …