It's a compelling human drama of survival against almost insurmountable odds. The documentary aspects are seamlessly interwoven with very authentic-feeling dramatic re-enactments which give the viewer a strong sense of watching history as it unfolds. I found the film compelling both in its technical aspects and its subject matter. Most remarkable is that the story is largely told by those who actually lived it. The difficulties, dangers, and privations they faced are unimaginable without their testimony. This film is an important historical document and should be far better known than it is. I am dismayed by and a little suspicious of the low IMDb score this film currently has (5.9). I don't normally bother with rating films myself and have never bothered before with a review. I felt compelled to add my rating to the mix in order to restore some balance, and I write this to assure anyone interested in history that this film is far better and more important than its mediocre overall rating implies.