I'll begin by saying that I rented this on YouTube. It's no longer playing on any of the sites mentioned.

I loved the balance between comedy and thrills. That's the way life is sometimes. Basically, a terrorist attack grips the city, and this is the story of people trying to survive. Action, action, action. I think there are fingernail marks in my couch from holding onto it so tightly. I will admit to being a big ole scaredy cat, so others might not have the same response.

Jo Jung Suk - I love him. He is such a versatile actor. Here he played the unlucky, loser ML and you couldn't help but like him. Yoona - I don't love her as an actress, but she did an okay job here, mostly because she was running a lot. Her crying scenes - just no.
Since this is an older movie, I loved seeing so many familiar faces from other dramas I've seen.

If you've got a couple of hours and you want something fun and fast-paced, give this a try.