About the same amount of plot holes and questionable physics as you find in any disaster movie; but with great acting from the principals, wonderful character arcs, and a surprising amount of realism. Great movie, you should be watching it.
Compelling movie and and impressive achievement - especially by Martina Gedeck who has to carry the entire film, and does so quite well. The narration becomes a bit overwhelming at times, and could have been trimmed down. Die Wand teases the viewer with hints of being a survival drama, at times almost slips into survival horror, and never quite crosses the line to becoming an environmental paen. Clearly a surrealist piece, The Wall allows the viewer to write their own meaning onto it, and in this respect very much reminds me of Bu˝uel's The Exterminating Angel. Although I find I'm left with a nagging suspicion that there is a deeply obscure metaphor for menopause here.