I saw the Led Zeppelin trailer. I rather like the idea of the mash up between medieval era fused with rock. At least it makes for some interesting trailers. I never saw it, but there was that film with Heath Ledger- A Knights Tale, which had a similar premise, and if I recall correctly, people didn't respond well to that either.
Fusing of such different styles is very difficult. Which is why its amazing when you come across something like Cowboy Bebop or Firefly, which blends completely different genres that give the audience polarizing connotations. Westerns and Sci-Fi and Jazz have little to do with one another, but they make it work.
Maybe there is a cheesy uncanny valley anecdote to it? Metal has always had this fascination with fantasy. Maybe a lot of people find rock + medieval era just to be bringe because it makes them think of 80s Dio music videos?
