The subtitles on this DVD are faulty. Often whole sentences are omitted, making it impossible to follow conversations. The beginning of a sentence is nearly always present, but after it ends, with an ellipsis, the subsequent subtitle doesn't appear, even though a character continues talking. This happens regularly throughout the film and quickly renders it incoherent.
The problem with the bonus disc, which contains the Burden of Dreams documentary, is more superficial. The icon which is supposed to show you which option you are choosing is absent from the main menu, and it appears in the wrong places on the scene selection menu, e.g. half on the picture of a scene and half off of it.
I had to return this DVD because of its subtitle problem. I contacted the DVD's maker, Anchor Bay, about its faults but didn't receive a response.