Though there are some fans who would tell you the Marvel Cinematic Universe has been doing rather well in the PG-13 space, and Black Widow certainly wouldn’t be the exception to break the rule a little further. Plus, R ratings, like it or not, vastly reduce the audience that would be able to see Scarlett Johansson and Florence Pugh work out their family issues through some kinetic action set-pieces. Again, this is a case where the rating is expected, and thus welcomed.