It isn’t a film but a television series made for Amazon Prime.
According to Wikipedia, it is ’‘is based on a feature film spec script written by Beacham, entitled A Killing on Carnival Row.’’
I’ve watched a few episodes of the series.
I think it’s not bad, which these days is pretty high praise from me (as I loathe how stupid and lazy the writing is in so many other modern productions). It’s actually not stupid.
It has a very detailed somewhat atypical (but borrowing many conventions and remixing them) fantasy setting that seems pretty well developed. Some of the events seem too convenient for my tastes, but managed to not reach my (very sensitive) threshold for getting upset at nonsense. The production values (sets, costumes, effects) are very high. Pretty good performances.
However I might not watch any more unless I run out of things to watch, just because the flavor of the fantasy world, and the personality of so many characters, and the situations, aren’t really to my personal tastes/interests. But I’d put that down more to my preference. In general it seems really well done.
I like it better than Penny Dreadful, which to me has some similarities.