TT: Danny Glover is Ahab for Dragons

If you watch the below trailer you will see a few strange things. Danny Glover as a crazy old man obsessed with killing a dragon, that this movie is based on Moby Dick, and that this sort of combination requires both hard rock and Vinnie Jones.

There are various things that puzzle me about this movie.

• First, does it take place in the future? If so, is it vying for the greatly sought after title of best futuristic dragon movie, previously held by Reign of Fire.
• Secondly, does this movie take place in some alternate universe where the Tenenbaum family gets eaten by a white dragon, and Henry Sherman must avenge their murderer/consumer? If so, why is Pagoda not helping?
• Most obviously, Moby Dick with dragons? Moby Dick by Herman Melville? How, in God's good greatness, did this get made? Unless it was all Danny Glover's idea, this all seems like one of those joke movies you see in other movies, like Snake on a Plane.
  
• What's with dragons and hard rock? Just off the top of my head:
  1. Reign of Fire/Mad at Gravity
  2. Dragon Age Trailer, and let's not talk about the advertising/credits song
  3. Trogdor

Is this Dragonforce's fault?

THATCHED ROOF COTTAGES!