The Polish version of Quo Vadis that came out in 2001. The movie was a catastrophy, litteraly, despite having a top notch cast, a great director, a good story and lots of money (I believe it is the most expensive Polish movie to date).
What happened was that they used most of the money building a lifesize replica of a Roman city at the mediterenian, that was completely destroyed by a storm before they managed to film a scene.
After that the actors and the director tried to make a movie out of it, but didn't manage to put their hearts in it as if they had lost their faith in the whole endevuar.
They used crafty litle tricks like filming a large gathering of people on a square and not showing the buildings around it and the people at the podium giving a speach had a real roman aqueduct as a backdrop, still to no avail.