I haven't seen a lot of this type of questions yet, only three to be exact, but I think it might be a good idea to make a decision before we get more of them.
If you didn't fully understand what kind of questions I am referring to from the title, then the following examples should give you an idea:
- Are there any spiders in The Hobbit: An Unexpected Journey?
- Does "The Hobbit: The Desolation of Smaug" have spiders in it?
Now, should we allow this kind of questions?
All three questions listed above have to do with phobias, so the OPs have valid reasons for asking them, but if we do allow them it opens the door for asking all kinds of questions regarding whether or not people with different types of phobias can watch a specific film.