I have to say that the ending is pretty disappointing. It's not necessarily predictable, but yeah, it's close.
I will say that it was filmed pretty cool though. Like, some parts really resembled the kind of style of Sin City which I thought was amazing.
Jim Carrey did a good job as a serious actor though, it was no 'Majestic' but it was ok.
Overall though, I've seen better, way better.