
Continuity mistake: After he climbs out of the air duct, John McClane's shirt goes from white to green. The dirt and grime from the air duct would cause discolouration only where the shirt comes in contact with the duct. However, his shirt is uniformly green including places that wouldn't make contact and it is impossible for all surfaces to make contact even in small areas. (00:23:05 - 00:56:30)
Chosen answer: There was never 1 movie that spoofed Die Hard but they were spoofed in many movies. Here is the IMDB link where you can see all the movies they were spoofed in: http://www.imdb.com/title/tt0095016/movieconnections.
SAZOO1975