Must have a woman as its:
☑️ lead, co-lead, or subject;
☑️ director or co-director; and
☑️ writer or co-writer (screenplay or source material).
I do my best to keep this list sorted (roughly) according to Letterboxd's popularity ranking, but that ranking is constantly changing and I have to do it manually so it's not always perfect. If you notice there's anything missing, feel free to let me know!