Re: Who is John Harrison (Possible SPOILERS or Insane Babbling)
I don't remember what it took to get Weller on Enterprise, but that was a failing tv show.
This is a big budget blockbuster with big names in the business behind it. I'm guessing it would be easier to convince Weller to sign on for that.
(He signed a deal to direct 2 Season 5 episodes of ENT, that was his price. He signed it the day before ENT was cancelled. Per Memory Alpha...)
No bloody A, B, C, orrr D