I've just finished watching
Lusitania: Murder on the Atlantic (aka
Sinking of the Lusitania: Terror at sea).
I had not heard of this film until today, when I watched Iambecomelife's excellent tribute. Despite the lurid title, the made-for-TV movie is very even handed, telling the story from both sides fairly faithfully. There are quite a few anachronisms, but that has to be expected given the low budget involved.
The events are recreated well, and stick mostly to the known facts. I recommend it.