Joy is the story of the development of IVF, and specifically the role of Jean Purdy in that world-changing process - a woman whose contribution to the research and treatment was too often written out of history. That a woman's contribution should be written out of this, of all stories is of course a deeply ironic injustice; and the film is seeking to do for this injustice what Hidden Figures did for a similar injustice in the history of the American space programme. Thomasin McKenzie is excellent - as she usually is - in the lead role, and Bill Nighy is well used as one of the surgeons. The story is, of course, inspiring and uplifting, but I can't help but feel that such a remarkable and important story deserves a better film. It's fine as it is - and it does improve as it goes on. But the script in particular does too much exposition, especially in the early stages; some of that may be felt to be necessary in a story that science plays such a role in. But the result is that it takes too much of its running time to really feel emotionally engaging. More character depth, a little more nuance in some of the issues the story raises would have led to something that felt even more worthy of the remarkable raw historical material. The process is interesting - but this is fundamentally a story about people. And whilst it's hard not to be moved by the end of the film, I can't help but wish for a production that was more emotionally engaging throughout.