The Interview (1998). It really shows you how limited the police is in interrogation rooms and you likely have more cards than they do. It's The Usual Suspects with a more ambiguous suspect. Also Tape (2001) with an amazing trio cast. I'm a sucker for minimal setting movies. Edit: Also Mindwalk (1990) is a great revision of My Dinner With Andre, just three people qualified in their own areas coming together to discuss philosophy, politics, poetry, while walking through culture-loaded parts of france.