Conversation so far:
What did Joaquin Phoenix do in 2006?
In 2006, Joaquin Phoenix was invited to join the Academy of Motion Picture Arts and Sciences.
What happened to Joaquin Phoenix in 2007?
In 2007, Joaquin Phoenix reunited with director James Gray for the film We Own the Night, which he also produced.

Question: What was this movie about?
Self-contained rewrite: What was Joaquin Phoenix's movie We Own the Night about?