Kull score is GOOD, damn it!!
I've heard many critiques over the years since the film's release about the SCORE.
I've always thought that Joel Goldsmith did an excellent job. NO matter what you think of the film, I think the score stands alone. I thought it was a brave choice to mix metal with orchestral score, and I think it worked really well.
There is a long standing connection between the fantasy genre and heavy metal. (I hate saying "heavy metal" because most people just think of 80's hair metal. But if I say "black metal" or "death metal" or "doom metal" or whatever, people don't always get that either.) I think Joel Goldsmith did a good job of understanding that connection.
If you by chance DID like the score to Kull, I'd also recommend listening to the band Therion out of Norway. Same principle, metal with orchestra.