Just watched The Cave (2005), the monster design is pretty interesting, I haven't watched this before and I was surprised by how much one of my other favorites, Pandorum, resembled this movie, has a lot that reminded me of Alien as well. The ending is heavily foreshadowed throughout the movie, however it leaves me with questions regarding intent/danger, can't talk too much about this without spoilers.
For the acting parts, Eddie Cibrian is pretty decent in his role as hot shot, daredevil diver, he has the look and just enough charisma, makes me wonder why he never became a bigger star outside soaps and some dumb tv show currently airing. No clue what Lena Headey's accent is supposed to be, she's unusually subdued in this movie, I guess I expect more from her. The rest of the supporting cast are also great, Daniel Dae Kim does a good job and Morris Chestnut does especially good for me. The other lead Cole Hauser does great throughout, wish he was in more stuff.