Chronologically after the anime season 1, this movie is very consistent with the Novels' story with minor changes to make it smoother on-screen. There is a large recap at the beginning (20 minutes or so), which might confuse those that saw the same scenes in the anime, but will catch you back up if you forgot some things. Soundtrack is pretty neutral and shouldn't turn anybody off.

If you like the movie or the anime (Which are GREAT!), I would suggest the Novels/Manga. The slower pace of reading gives you the opportunity to catch minute details of character development to partner with the goblin slaughter!

First off i want to say, that I'm a huge fan of the series. I've rewatched it a couple of times, and the movie starts off with a 30 minute recap of the anime. 95% of the people that are going to watch the movie are people who have seen the series, and have enjoyed it, so a 30 minute recap is just unnecessary, there are few extra comments from Priestess, but nothing important.

The movie itself starts off nice, the story seems interesting at first, but it really isn't. It's pretty generic and as much as i wanted to like this movie, it really doesn't do much. Yes there are some smart ideas from goblin slayer, and interesting battle tactics, but overall the movie seems really slow and short and the boss goblin was pretty bad also, like i prefer the goblin shaman from first episode of the series bad. If you really, really like the show, you will find some enjoyment in the movie like i did, but for everyone else it will probably be boring and bad.

IN SHORT: To me it feels like it's the worst arc from goblin slayer until now, but it still is goblin slayer, and if you love the show you will at the very least somewhat like the movie.