Actress change?

[mullsym255]

Okay, I know this is a completely tiny detail, but what can I say. Is 
the actress who played Alicia Spinnet different in COS? Because she 
did not look like the same actress to me, yet IMDB (which isn't 
always reliable) credits the same actress for the part, Leilah 
Sutherland I think it was. The other two girls looked the same. I 
guess when I see it again, I'll have to stick around for the credits.

-Tracy