http://bugs.winehq.org/show_bug.cgi?id=35515
--- Comment #5 from Christopher Thielen christopher@thielen.co --- Reported this to Nouveau and working with them on the freedesktop.org Bugzilla to track the particulars down but based on some googling of this game + Wine, it seems the crash in Nouveau is only one facet of this problem.
For the record, I can confirm the U9 movies are MPEG-1 files in AVI container format simply renamed to ".dat". Perhaps Wine 1.7.12's Windows Media interfaces will help? Will re-test ...