I'll tell you one movie I won't be wasting my time with,
47 Ronin. It's an amazing story and from the previews of this Americanized production of it, it looks as if it has nothing to do with the real story and even if it did, it looks like a Crouching Tiger, Hidden Dragon style movie which is definitely not needed for this amazing story.
Though I might be spoiled as I saw
Chushingura: Hana no Maki, Yuki no Maki which being a movie is also fictionalized in ways, it does a great job telling this terrific tale of loyalty and honor. If you have never heard of this tale, take the time to read the brief rundown of it,
on Wikipedia, while being Wikipedia it doesn't go into extreme depths, it gives you a general idea of what took place, under what conditions it occurred and it's eventual outcome.
While obviously i haven't seen this Americanized remake of it, I saw the preview and was not impressed, if you can find it at your local rental store (I know whats that!) I seriously recommend checking out Chushingura: Hana no Maki, Yuki no Maki. As a side bonus, it has
Toshiro Mifune in it which is never a bad thing!
Finally sorry I know it isn't out yet but I saw the preview for it recently and was outraged at what looks to be a serious injustice to this incredibly amazing true story.