The movie wasn't terrible, just a regular stoner movie, but the soundstrack was indeed leagues better than the movie. It's hard to match perfection though.
The Crow. Movie was just so cheesy, but the soundtrack is just some of the best alternative songs from the time. A lot of original songs made for the soundtrack too.
Skate Kitchen. I watched it because I like the Clairo song that’s on the soundtrack and it’s about skateboarding, but this has to be the most boring coming of age movie I’ve ever seen. Not helped by Jaden Smith’s terrible acting
Kikujiro, 100%. Beautiful soundtrack by Joe Hisaishi so I blindly watched the movie with a friend. It made no sense (maybe cultural differences? lmao) and left us wondering "WTF" after the random child molestation scene which I think happened near the beginning. Maybe the movie is okay and we brought this upon ourselves by watching it with no context, but man, it was nothing like the music.
But it wasn't a bad movie. Maybe not the absolute peak of cinema, but it's no where near "terrible". They did a lot of things very right. Rorschach, for example, was absolutely perfect. Exactly like the graphic novel.
I think it depends on the definition of terrible. The first movie that sprang to mind when I read the question was Maximum Overdrive. A movie that I think most people consider pretty terrible although it's always been a guilty pleasure of mine and I think the AC/DC soundtrack plays a huge part of that.