I was looking at this article today on the Guardian website
which led to this report form the UK Directors about gender and film directors
Often you can ink to goo d sources very quickly this days - the power of the hyperlink!
and then I saw this earlier report.
Ilona - will mention when we speak.
What is quite irritating with doing inquiries is that these things do have the habit of popping up at the last minutes as you are finalising drafts!!
Hope that helps - you might have a pop up source - so worth a google... or look at places you know have good information.