Their argument: Henry Cavill's Sherlock showing emotion — or respecting women even — in the film Enola Holmes is a character trait he only developed in Doyle's later stories, which are not in the public domain and thus still fall under copyright law.
On the other hand, Brown (who could pass for “Sherlock” star Benedict Cumberbatch’s sister) brings some of the awkwardness we traditionally associate with the iconic detective to her role: Enola was never indoctrinated by her mother in the ways of polite society, and as such, she’s meant to represent female intellect in its natural, unrepressed state.
And this one imagines the consequences of Sherlock and Mycroft having an estranged teenage sister, Enola (Millie Bobby Brown), who’s ahead of her time when it comes to the fairer sex’s treatment in Victorian England…