I really shouldn't have to say anything more than that.
She saw the 1988 John McTiernan classic for the first time with me a few months ago. We watched my Blu-ray copy (strongly recommended!).
Her general response? "There was a lot of language, but I liked it."
Way to go sweetie! Now, dear reader, is your fiancee cool enough to like Die Hard?
ValkyrieSDF1
