We can actually trace her ancestry AND her looks. Documentaries don't leave room for fiction and this isn't the first time that Hollywood meddles in European history they know nothing about. She wasn't even Egyptian and neither was the Ptolomeic dynasty. The fact that I was born in a certain country doesn't warrant me anything but its citizenship and that has nothing to do with actual ancestry and origin. To assume you must be black if you live in Africa appallingly reductive but that's what you can expect from Hollywood anyway.