Here's a blast from the past! Let's go back to the year 2010 when Jon Favreau's Iron Man 2 hit theaters. This is the Marvel film that introduced us to Scarlett Johansson's Black Widow and Don Cheadle's War Machine to the MCU.

Thanks to CBM, we have some early concept art to share with you featuring early designs for these two characters in Iron Man 2. There are some great designs here, but I ultimately like what Marvel Studios ended up using in the film.

It's cool to see how these characters have grown and evolved over the course of the franchise. It will be interesting to see how their story arcs come to an end in Avengers 4.