There's a gem here and there in Chicago, but my favorite is the moment where the lawyer's manipulation are portrayed by showing him as puppet master (the puppets being the murderer and the press), and the song accompanying that scene.
There's gems here and there in the rather overrated Annie Hall (EG, when the protagonist speaks to strangers, and part of his character when he gets honest and straight-to-the-point). The movie however tends to drag and seems pointless, more of a mental exercise and an exploration of one clumsy, confused guy. By the way, this is the only movie so far that I've ever enjoyed Diane Keaton's performance.
Constantine is still enjoyable due to the exotic story of its Satan (who's portrayed so well) vs. God thing - the deals they made, the pawns they created (angel Ghabriel is done so well, and so is the charming demon; not to forget the half-headed not-so-charming ones in hell), the worlds they created. The whole thing is also a reminder of the great size of bull-crap that Abrahamic religions are.