While for the most part I have no problem with industry crossovers, there are a few comics that were based on TV shows or movies that would have been better off unpublished. In the same sense, there are tons of comic book films out there that ruined favourite characters or story arcs.    
 
I know people are sick of reading about it, but I especially despise the idea of the “Twilight” graphic novel. It is bad enough they had to scar the film industry with that monstrosity, but then they had to invade comics with those glittery freaks? Why on earth did they feel the need to do so? I think it was an attempt to initiate a mass suicide.  
 
Are there any industry crossovers that you personally believe should never have happened?