Quoted from blueberryjohnson:EDIT: When I wrote this I thought I was responding to the latest comment so didn't need to quote!
Army of Darkness is not a horror movie. People only talk about it as one because it is part of a trilogy that contains a straight up horror movie (ED) and goofy one (ED2). AOD is a campy action comedy with skeletons.
Entries in movie franchises usually stay within the same general genre (even if there's a lot of execution variability), but not always.
Question: What are examples of other franchises that contain movies from different genres?
All the Alien movies.
Friday the 13th was straight up horror, but it's sequel Saturday the 14th was like parody comedy.