POA "actor"

[Carol]

Carol earlier:
> 
> > Draco's new sidekick is easily explained: the boy who plays 
Gregory Goyle was sitting his OWLs--sorry, I mean his O-level exams or
whatever exams for fifth-year students are called in England. He
wasn't written out of the films, just temporarily replaced by an
unnamed fellow Slytherin with an uncanny resemblance to the as-yet
unmentioned Theo Nott.
> 
> zanooda:
> 
> But Goyle actor was also in the movie! I would have understood if 
they replaced him, but they just added the third sidekick. And I think
that Theo Nott must be better-looking :-).

Carol again:

Right. The actor, Joshua Herdman, missed some of his scenes (the ones
in Hogsmeade that Conflicted with his exams) but not all of them. The
exams probably took only a week or two, comparable with the OWLs in
OoP. (Someone from Britain please correct me if I'm wrong!) I suppose
that they added the third sidekick to some of the scenes that Goyle
was in so that he wouldn't just turn up out of nowhere for the scenes
that Goyle was supposed to be in but the actor couldn't participate in
because of the exams.

I know that's not very clear, but I can't find the site where I first
read that he was taking his exams (it doesn't seem to be on the IMDb).

BTW, Bronson Webb, the boy (young man by now) who played the unnamed
Slytherin sidekick, has a surprisingly extensive filmography for
someone born in 1983:

http://us.imdb.com/name/nm0916037/

Carol, who wanted Theo Nott to be "the good Slytherin" and was
disappointed by his total absence from DH

Carol, thinking that maybe the term is A-level rather than O-level but
still struggling to understand the British educational system!