Europe has still managed to find a very good solution to this problem and has the whole rübergebracht voices, so a nice, atmospheric sequence has become of it.
For this, all actors are well chosen (up to Darren, why get 25 years of roles that are intended for 14-year-old ?!) and make real good job.
Of course you can here and there looking for crumbs (in the book is Joe Wilcox been more lit up and there was an action scene more), but that gives me no reason to assess the result of poor - it is simply implemented class.