Perhaps you can explain the concept of suspension of disbelief in an academic way for her?
this is SO helpful! we had to explain to DD5 quite early on that there is a great deal of joy to be found by simply selecting the right "lens" for processing things that might at first seem illogical. i think the first of these instances was santa claus - she just never bought the idea at all, and needed help understanding how parents could lie to their kids.
interestingly, this idea of switching "lenses" has also worked for us when she's had logic-blocks with various other (totally unrelated!) issues ranging from religious beliefs, to seasonal traditions, cultural differences and of course all forms of fantasy/fiction. (cause as y'all know, it's pretty much all Harry Potter - all the time round ours!)
