Another re-watch. This movie is the third in the Evil Dead series by the Raimies and Bruce Campbell. The first two were Evil Dead and Evil Dead II. Both the first two were horror movies, the first being a student film. It's been 20 years since I watched them, but I remember them as being horror movies with comedic influences. Army of Darkness however is more comedy with horror influences. It is a straight up cheese fest. Campbell is fun to watch as the not too bright, and horribly obnoxious Ash.
Ash is somehow thrown backwards in time to something resembling the middle ages where he must once again battle the deadites. The wigs, costumes, and sets for the movie are horrible. The dialog leaves much to be desired, the special effects are inexpensive and the result is quite a bit of fun. The cast and crew are all aware of the shortcomings, and that is part of the joke and fun of it all.
If you are looking for some mindless fun, then by all means pop up some popcorn, check your brain at the door and enjoy the film. If you'be seen it before, it is just as cheesy and bad as you remember it, so go ahead and enjoy it again. There is a reason it has become a cult classic. It is all tongue in cheek and the cast and crew want you to enjoy the cheese and humor too.