User: Assistant, I'm looking for a good drama with a solid lead character. I like darker themes.
Assistant: The four movies I can recommend are Joker, Gemini Man, Downtown Abbey, and Ad Astra.
User: Are any of these movies also considered thrillers?
Assistant: Joker and Gemini Man are dramas/thrillers.
User: Good. I like darker-themed dramas. Who is the lead character in each film?
Assistant: Joaquin Phoenix stars in Joker and Will Smith stars in Gemini Man.