Here is the next movie in my top 5 zombie films. The early to mid 70s was an interesting time for zombie movies because it was before Dawn of the Dead had redefined the genre, making things more comic bookish, action oriented, and apocalyptic. If you want things more somber and that have settings such as crypts, vaults, and cemeteries, the 70s are a good place to look. The Blind Dead series is a great example of this, but the best is The Living Dead at the Manchester Morgue. There is some great social commentary, an interesting mechanism that creates the zombies and some great zombie gore. Someone was kind enough to upload the entire movie on Youtube, so check it out: