Lets clarify here. I couldn't find the NYT article referenced, but the movie absolutely does not have an all black cast. Its a movie about black fighter pilots in WW2.
Obviously, the major characters in the movie are black, but (and I don't know who these guys are) if Lee Tergeson, Josh Dallas, Rick Otto, Todd Detwiler, and Michael Dixon (among others) are black then I am too.
Now im no mathemetician, but whitefolks in the film cannot equate to an all black cast.