it just had to look absolutely right. >> do you like hagrid? >> i do like hagrid, yes.ne asked me that before. he's a big decent sort of bloke. >> hi. >> hello. sorry, don't wish to be rude but i'm in no state to entertain today. >> j.k. rowling said coltrane was her first choice to play the half giant, that his acting brought a subtlety necessary to the character. with all the fans that these books have in the films, do you feel an enormous responsibility to get hagrid right? >> yes. i did feel an enormous responsibility to get hagrid right. i also think everyone else did, you know, i'm talking about the sparks and woodworkers and construction people, everybody, because they're all parents, too, they had all read the books to their kids and i think everybody raised their game. you look at the cast list of all the people we've had over the last ten years, the absolute who's who of british acting, an extraordinary experience for everybody, i think. >> one of the later additions of who's who of british actors, helena bonham carter as bellatrix lestrange. >> she has issue,