If they gave an Oscar for biggest plot holes...

Rating: 4/10 (30 December 2005)

this would be a front-runner. Also a contender for Worst Pacing. But it ends up with a four, since the action sequences did keep me tense and interested. I just lost a couple of minutes of concentration every time one of those staggeringly huge holes popped up.
I won't bother trying to list them, since so many others here have already done such a fine job.
I wish they'd skipped the whole "blood, cage and grenades" subplot and put that time into properly developing the ending. It didn't do a thing to advance the story, such as it was. That whole sequence was just empty meaningless horror-filler.
I'm not sorry I watched it, but am REALLY glad I got it from NetFlix!