I think these questions can be really beneficial. Both of mine received a positive score, and I got the information I needed.
Today I again run to the same situation. I again have a movie, and I would like to watch only the third part, without watching first and second.
But I am not sure if this type of question is really good for the site. There are tons of potential questions like this (about every movie that has at least two parts).
It can potentially bloat and spam the site because they're really easy to ask.
Should we ask them?
If so, should we have some rules about them?