Find the movie name from the given conversation. If the movie name is not found give output as "unknown"
Q: ASSISTANT: What type of movies do you like? , USER: I like comedy and documentary-type movies. , ASSISTANT: OK. Great. Why do you like documentaries? , USER: Well they're usually informative and that's always a nice thing, I like learning. Yeah. , ASSISTANT: Can you tell me the title of one of your favorite documentaries? , USER: I believe it's called AFK. It was about The Pirate Bay. I think it was, like, about how it came to be and, like, the legal issues that it faced, etc etc.
A: 
AFK