Evening Reading

Guys, I'm in the middle of wrapping up a synopsis for a deep sea action-thriller (screenplay) and before I start writing the actual script (though I've got scenes down in draft already) I wanted to make sure there were no influences I was missing when it came to doing this thing right. I love to immerse myself in similar fiction while writing as I find it very inspiring when movies are done right.

My story is what I like to call: Cloverfield at Sea

It has a strong scientific and military bent, it follows an expidentionary cruise to a series of deep sea buoys that are being programmed for specific functions (there are several subplots buried in this) and while they're out there, several things happen - an encounter with a foreign submarine and an encounter with a giant fucking sea creature.

Anyway, so I'm looking for movies that deal with any of these themes/issues, my list (of flicks I've seen) is currently:
- Jaws
- The Abyss
- Hunt for Red October
- Crimson Tide

Any others?