Any Potter fan interested in applying for a chance to be cast as an extra in Goblet of Fire should get his/her materials ready:
...you might be in luck because you can apply to become an extra from January 2004.
The casting office has confirmed to CBBC Newsround that kids can write to them from that date - but not before!
Although of course they can't promise anything to anyone and it's really tough competition.
Mail (don't fax or phone) Leavesden Studios your recent photograph accompanied with a short letter and self-addressed envelope to:
PO Box 322
Additionally, rumours that Michelle Ang (who portrays Lori in Neighbors) has been casted as Harry Potter's crush, Cho Chang, was dismissed by one Warner Brothers casting official:
"That's rubbish! Every week there's a different rumour - I don't know where they get them from.
"I can tell you no one's been cast at all for Goblet of Fire."