What did Hypatia really know? The Science of Agora

With almost no cinema distribution and with the sales of the DVD virtually non-existent, Agora will probably vanish almost without a trace, not unlike its main character. The life of an historical figure few have heard of seems not to be a commercial proposition even when it gets generally good reviews on film buff blogs.  But there have been some heated debates online. Although any film where religion is a key part of the plot could upset someone somewhere, most of the discussion I have seen has been about how accurate a portrayal it was.  The historical background is one thing, but the question I find most interesting is what Hypatia actually did or didn’t do.  Where does Hypatia fit in the history of science?