I really hope you didn't watch the mummy 3 expecting something good. When I first saw the trailer i thought it looked interesting...right up to the end where i saw the directors name - Rob Cohen. I that precise point i expected it to be a waste of time. I will watch it at some point and may well enjoy it somewhat...but i wont get excited for it.
Have you considered maybe combining elements of the 2nd and 3rd mummy films - I don't know the general consensus but the 2nd film felt 'cheap' to me.
I also like your idea of presenting X-files 2 as a few episodes. have you planned anything out or are you just thinking out loud at this point?