Drama? Tragedy? Comedy?
Saw this recently for the first time as part of a Werner Herzog season at the ICA in London and absolutely loved it. What is most incredible about the whole ordeal is Dieter Dengler's positivity. He recalls the most horrendous tales quite happily and easily even though they must have caused him unimaginable pain. He has a terrific strength of character that is quite hard to believe.
Bearing this in mind, in the showing I watched a lot of the audience members openly laughed out loud while Dieter described what he went through. I can understand as it seemed as though every possible thing that could go wrong did go wrong which can be funny in a very dark kind of way. However it's Dieter's attitude that seemed to make it okay to laugh as he told his story with such ease. As Dieter himself said, it was the most exciting time of his life. If he was more sombre and morose than I'm sure the audience wouldn't have reacted in this way, just something I found quite strange.
This also makes it hard to define what genre it is:
Drama? Yes.
Documentary? Yes.
Fiction? They stylised parts Herzog created.
Tragedy? Hmm, maybe
Comedy? In part.
Maybe that isn't something to worry about as long as you are interested by the film and Dieter's story.