HBO is giving us all a ride on the Hogwarts Express, by way of a fresh trailer for its forthcoming "Harry Potter" series adaptation.

SCRIPTS for the second series of the new Harry Potter TV show are unfinished and yet to be signed off, delaying major scenes being shot.

Fans got mere glimpses of each of them in the first trailer, but in this one, it's Janet McTeer's McGonagall that kicks everything off, explaining the sorting ceremony to the first years.