Who should play the characters in the upcoming Voltron movie.

Ok the whole movie thing on Voltron has been on for some time now, as a huge fan
would want to see a great movie as good as Transformers if not better.
To have a good movie you need a great director hmmm! feel James Cameron would do 
a great Voltron or Steven Spielberg and for the cast what do you guys (i mean fans)
feel about this group?

Keith – Emile Hirsch
Lance – James McAvoy
Hunk – Seth Rogan
Pidge – Christopher Mintz Plasse
Sven – Brandon Routh
Princess Allura – Kelly Carlson
Coran – John Spencer