In the new Fantastic Four movie, Sue Storm (later Storm-Richards), the Invisible Girl, and Johnny Storm, the Human Torch, are being played by Kate Mara and Michael B. Jordan respectively.
Ms. Mara and Mr. Jordan are both talented actors with impressive CVs, but she is white, and he is black, and Sue and Johnny Storm are brother and sister.
I went to the Wiki page, and Papa Storm is played by Reg E. Cathey, a black character actor, so I am assuming that Sue is adopted, (well, duh!) and that there will be which means that there will almost certainly be 10 minutes of back story to explain this in the film.
If not, you are going to have a lot of stupid people demanding back story anyway.
My problem is that when one reintroduces a series, this is the sort of sh%$ that you don’t need.
There is a going to be a Lot of back-storying in this film anyway (The first Thor movie was pretty much just backstory, for example, which left me unimpressed), and I think this adds thing that don’t need to be there.
As I noted in my comparison of Captain America and Thor, (link) backstory cannot take precedence over plot and character, and this choice by the director and/or producer points that they have not learned this lesson.
So I think that this points to bad cinematic decision.
And don’t get me started on the fact that Ben Grimm is not wearing pants. The Thing wears pants.