I'm posting before I've read the majority of the replies.
I totally disagree with showing a movie the last two days of instruction. IMO, it is not too late for learning, real learning, review, cramming, an a-ha moment...what have you.
One question can be the difference between passing and failing! Why in the world would teachers pass up that opportunity, the chance to push through for two more class sessions that could make a major difference in students' exam results?