A long time ago, we went to see Valhalla Rising with Monika- a viking movie with Mads Mikkelsen. What we got was two hours watching some people in a boat and wandering around a forest aimlessly. We were on the verge of getting up and leaving (being the only people in the cinema), but all through the movie I had a (misplaced) feeling it was just about to get good.
Ambitious cinema is awesome, but you gotta know your limits.