Was expecting a different ending. The beginning was good. What happen to Kate?

It was just okay. An hour and a half spent almost entirely on the bottom of the ocean. Ran out of air, then a repeat of the same events after getting a new tank. It was just so predictable and lacked real storyline. Very little character development. It made me hold my breath (I can't swim), and I jumped from my seat several times, but beyond that, there just wasn't much to it.

It had its scary parts, but at times was slow and had a very weird ending.

I would have like a clearer ending, it left you wondering did anything happen to the people who took them out there and what happen to the girl once she was brought up on the boat did she get to the hospital and live or did she suffer from lack of oxygen or whatever. Needed a better ending.