It is no secret that I love the Giallo genre. I have written enough about them to make that obvious. However the question: "what makes a movie a Giallo?" is always at the back of my mind. There is no clear answer to this question. Yes, there are movies like The Bird with the Crystal Plumage (1970), Deep Red (1975), Lizard in a Woman's Skin (1971) and The Strange Vice of Mrs. Wardh (1971), to name a few, that are undeniably Gialli, but where does one draw the line? What is necessary for a movie to be a Giallo? The sex? The gore? The killer in black gloves? Well none of those things hold the key by themselves, and although those tropes are extremely common in most Gialli, they don't define the genre as such.
There is some mix of Noir, Thriller, Horror, Mystery and Exploitation that needs to be balanced just right for a movie to truly be a Giallo. Late stage Gialli seem to drop most of the Noir in favor of Horror, and most fans will rate those movies poorly, and even if they do like them, they aren't always considered true Gialli. Stagefright (1987) is one such. It isn't a true Giallo, but it is close, and I do like it.
I would argue that there can't be too many or ideally any supernatural forces at work for it to count as a Giallo. In Lucio Fulci's The Psychic (1977) we have a woman who sees glimpses of things to come, but that is pretty much as far as the supernatural can go. Once you start mixing in ghosts, zombies, witches and magic, you are firmly in Horror territory. This is why Argento's Three Mothers trilogy cannot be considered Gialli. You can have fake supernatural forces though, that has been done successfully.
Yesterday I tripped over a documentary that does a good job at answering some of these questions. Officially it is a documentary about Dario Argento who's career includes some of the highest rated Gialli in movie history. He did not invent the genre, but he set the bar and he set it high.
Unfortunately there are heavy spoilers for a lot of movies, so if you are looking to dive into the Gialli genre yourself DO NOT WATCH THIS VIDEO! Three years ago I posted a two part video from the wonderful TheKingInGiallo channel that explores this in a spoiler free environment.
That post is here: https://eccentricspheres.blogspot.com/2023/10/what-is-giallo-really.html
If however you are a veteran of the genre, or are mostly curious to learn more but have no intention of watching the movies yourself, have at it. I found it really interesting. Again, it contains a lot of SPOILERS!
This is the Argento documentary Yellow Fever, and I'll embed it below: https://www.youtube.com/watch?v=UmDOJC1pxF4
That's that and all that. Join me again next time and until then, have a great week!