Your last point seems like it should be a function of market demands. If people wanted to see women talking about something other than men, those movies should

Your last point seems like it should be a function of market demands. If people wanted to see women talking about something other than men, those movies should dominate at the box office. This is a correct deduction assuming (a) the film industry is a perfect market, that film producers will act as rational actors (how many "take my money" posts do we see?) and (b) that there is no institutional sexism at work in production/distribution etc. I think (a) & (b) are working here, making your "but people don't buy it!" argument false.