The film makers probably won't release any pictures of Robert playing Hufflepuff Seeker Cedric for some time, but CBBC Newsround can exclusively bring you the first pictures of him in a film he completed earlier this year.
In Kingdom in Twilight, he plays a character called Giselher, in the story of a young man called Siegfried who doesn't realise that he is heir to a conquered kingdom.
It's thought that Kingdom In Twilight will be released at the end of the year. Goblet of Fire should be in cinemas in November 2005.