Watched Constantine at a special screening for Comics fans tonight (thanks to Yossi and Ofra of Comikaza). It was actually kinda good. The best part about it is that when you're laughing, you're mostly laughing with it, not at it, as was the case with Van Helsing and Underworld.
It bears almost no relation to Hellblazer, the comicbook on which it ostensibly based, but I spent the way to the theater telling myself "this is NOT Hellblazer" many times over, and it mostly worked.
I'd write more, but I'm writing a review elsewhere.