According to a new UK study, films with female directors and writers do well at the box office. Could it be because women are more likely to be naked or half-naked or not-talking in films?

The piece from the Hollywood Reporter says that employing more women in writing and directing roles makes sound business sense for the film industry, according to new research from the British Film Institute. Sounds great, but here's the problem:
But women remain underrepresented in writing and directing roles. For all U.K. independent films released during the period analyzed, just 11.4 percent of the directors and 16.1 percent of the writers were female.
There isn't enough women in films, but Maria Miller, UK's Culture minister and minister for women and equalities tells THR:
"There is still a long way to go to address under-representation across the sector in general, but with the number of women being employed within the creative industries growing year by year, I know we can look forward to a future for film where the talent of women can shine."
[The Hollywood Reporter]