The Admiral: Roaring Currents, on Netflix. It's about the Korean admiral Yi Sun-Shin and his most famous battle, the Battle of Myeongnyang, where he held off 300 Japanese ships with just 12 of his own. Some say he's the greatest naval commander in history. I don't know enough to say either way, but it was quite an accomplishment. The film itself was a big hit in Korea and it's fairly lavish in its sets, special effects, and casting. The battle scenes are suitably big and capture the craziness of naval combat in the middle of whirlpools pretty well. A big drawback- and this is something I see again and again in Korean war films- is a lethal dose of sentimentality and nearly cartoonish heroics. The music score doesn't help- it's like someone put on the dramatic holywood epic music machine and went out to lunch. A fun movie overall, problems aside.