Kingsley and Von Sydow OWN that scene where exposition regarding the disappearance is given. Great performances from both and both end up being very ominous for different reasons. Von Sydow's character of course has that look and feel of malevolence about him but Kingsley has that under-the-surface menace. Always loved that moment where Kingsley confronts DiCaprio and says something to the effect of, "I've made something of value here that I don't intend to give up without a fight..."
DiCaprio and Ruffalo are, as they are in most rolesl, awesome in it. Also awesome to see strong character actors like John Carol Lynch, Jackie Earle Haley, and the man Elias "Casey Jones" Koteas.
Don't see any real issue with the film. To me it's like a Hitchcockian Scorsese film. It's thoroughly involving and has great atmosphere. I definitely recommend that one.