The Boondock Saints 6/10 (being generous)
I've wanted to see this for a while purely down to an audio clip that's used at the beginning of a song I like, so I didn't really have any real expectations on watching it other than hoping it'd be as good as the music. Sean Patrick Flanery, Norman Reedus, Willem Dafoe and Billy Connolly partake in what amounts to be an almost comic book vigilante justice film, although nowhere near as good as that might sound. Tragically I'm actually going to watch the sequel at some point, although I have no faith that it's going to be any good.
Wuuuut, Boondock Saints is great, gem in the rough so to speak as not a lot of people have heard of it. Obviously avoid the sequel as it is beyond awful.
If you want awful, try The Marine 5 on Netflix, everything about it was awful 3/10