If you like movies that keep you thinking hours after you've completed watching them, then you'll like Inside Man.
As I told Tamar, I couldn't even remember how it got on my Netflix queue, but there it was and it was very, very good.
I've really enjoyed Spike Lee's movies over the years; Denzel puts in another solid performance; Jodie Foster really impressed; the dialogue was solid; and the plot...anything but predictable.
Reminded me, a bit, of Memento in making me think/work to understand what was going on.