I bet you didn't know that! Fun Facts - Metal edition !

[Carnage]

The axe that Nicholas Cage's character forges in the film Mandy is based on the 'F' from Celtic Frost's logo.

Johan Johansson also got Stephen O'Malley to play guitar on the soundtrack for it.

I was aware of the CF link but not that O'Malley was on the score, I must get that.